KRA - Kenya Revenue Authority

The Kenya Revenue Authority was established by an Act of Parliament on July 1^st 1995 Cap. 469 for the purpose of enhancing the mobilisation of Government revenue, while providing effective tax administration and sustainability in revenue collection. The Board and Management of KRA have since its inception spent time and resources setting up systems, procedures and the adoption of new strategies aimed at enhancing the operational efficiency of the Authority's processes.

In particular, the functions of the Authority are: -

• To assess, collect and account for all revenues in accordance with the written laws and the specified provisions of the written laws.

• To advise on matters relating to the administration of, and collection of revenue under the written laws or the specified provisions of the written laws.
  
  
• To perform such other functions in relation to revenue as the Minster may direct.

2.0 Legal Structure

In order to realise its mandates, the Authority administers the following written laws relating to revenue: -

• The Income Tax Act (Cap. 470).
• The Customs and Excise Act (Cap. 472).
• The Value Added Tax Act (Cap. 476).
• Road Maintenance Levy Fund Act, 1993 (No. 9 of 1993).
• Air Passenger Service Charge Act (Cap. 475).
• Entertainment Tax Act (Cap. 479).
• East African Community Customs Management Act, 2004.
• The Annexes to the Protocol on the Establishment of the East African Community Customs Union.[Act No. 9 of 2007.]
• Traffic Act (Cap. 403).
• Transport Licensing Act (Cap. 404).
• Second - Hand Motor Vehicles Purchase Tax Act (Cap. 484).
• The Civil Aviation Act (Cap. 394).
• The Widows’ and Children’s Pensions Act (Cap. 195).
• The Parliamentary Pensions Act (Cap. 196).
• The Betting, Lotteries and Gaming Act (Cap. 131).
• The Stamp Duty Act (Cap. 480).
• The Horticultural Crops Development Authority (Imposition of Feesand Charges) Order, 1995 (L.N. 228 of 1995).
• The Standards Levy Order, 1990 (L.N. 267 of 1990).
• The Government Lands Act (Cap. 280)
• The Sugar Act (No. 10 of 2001).[Act No. 15 of 2003, L.N. 56/2004, Act No. 9 of 2007.]

It is therefore clear that other than the enforcement of tax laws, KRA's operations impact directly and indirectly on the life of every Kenyan.

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Sample Class Notes

Most exam boards only require knowledge about reproduction in Angiosperms - the flowering plants.

Flower structure

Sexual reproduction in flowering plants centres around the flower. Within a flower, there are usually structures that produce both male gametes and female gametes.

Development of the ovule and female gamete

Inside the ovary there may develop one or more ovules. Each ovule begins life as a small projection into the cavity of the ovary. As it grows and develops it begins to bend but remains attached to the ovary wall by a placenta.

At the start, the ovule is a group of similar cells called the nucellus. As it develops, the mass of cells differentiates to form an inner and an outer integument, surrounding and protecting the nucellus within, but leaving a small opening called the micropyle.

At the centre of the ovule is an embryo sac containing the haploid egg cell (the female gamete).

Development of the male gamete

Each anther contains 4 pollen sacs. Many pollen grains develop inside each pollen sac. It begins with a mass of large pollen mother cells in each pollen sac. All are diploid. In each pollen grain the wall thickens and forms an inner layer (the intine) and an often highly sculptured outer layer (the exine). The surface pattern is different on pollen grains from different species. When the pollen grains are mature, the anther dries out and splits open (a process called dehiscence) and the pollen is released.

Pollination

Many plants favour cross-pollination, so pollen must be transferred to the stigma of another plant if sexual reproduction is to take place. Some flowers rely of the wind to carry pollen grains others rely on insects.

Self-pollination is where the pollen is transferred to the stigmas of the same flower or the stigma of another flower on the same plant. Self-pollination is obviously more reliable, particularly if the nearest plant is not very close.

A potential drawback is that both gametes come from the same parent. If the plant is well adapted to a stable environment, the production of uniform offspring may be advantageous. However, inbreeding will result and if there are disadvantageous recessive characteristics in the parent, they are much more likely to be exposed than if the plant cross-pollinates.

Cross-pollination is less reliable and more wasteful than self-pollination, but it is genetically favourable because genes are transferred and variation increases.

Strategies to favour cross pollination:

Dioecious plants: Some plants have flowers that are only male - they have only stamen. Other plants of the same species have flowers that are only female - they have only carpels. 

Monoecious plants: Some flowers on a plant are only male; other flowers on the same plant are only female. So, self pollination is avoided by a difference in the timing of their development. 

Protandry: Anthers on some plants mature first. Pollination of immature stigma on the same plant is therefore not possible. 

Protogyny: The stigmas mature first. 

Self-incompatibility: Pollination can occur but the pollen tube doesn't grow well, if at all, so no fertilisation takes place.

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Video Tutorials

Tutorial Videos for the subjects listed in the drop down below are available at kcse online website for its Gold registered members only. The Videos can at the moment be viewed with Adobe Flash Player installed in your system. Some of the files are as large as 200 MB and so if you are operating on a slow internet connectivity, it may not be possible to stream or download videos.

 

VIDEO TUTORIALS

Agriculture form 1
Agriculture form 2
Chemistry Form 1
Chemistry form 2
Computer form 2
English form 1
English form 2
Geography form 1
Geography form 2
History form 1
History form 2
Homescience form 1
Homescience form 2
Kiswahili form 1
Kiswahili form 2
Physics form 1
Physics form 2

Note: This video tutorials require Adobe Flash Player to watch, so install ( free) if you don't see video on when you open them.

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Primary and Secondary School Syllabii

English Syllabus
Arabic syllabus
Aviation syllabus
Biology for the blind syllabus
Building construction syllabus
IRE syllabus
Metalwork syllabus
Music syllabus
Power mechanics syllabus
Kiswahili Syllabus
Mathematics Syllabus
Biology Syllabus
Physics Syllabus 
Chemistry Syllabus
History & Govt.Syllabus
Geography Syllabus
C.R.E. Syllabus
I.R.E. Syllabus
Home Science Syllabus
Woodwork Syllabus
Art and Design Syllabus
Agriculture Syllabus
Electricity Syllabus
Computer Studies Syllabus
French Syllabus
German Syllabus 
Music Syllabus
Business Studies Syllabus
Primary School Syllabus Science syllabus:
 
Standard One Syllabus
Standard Two Syllabus
Standard Three Syllabus
Standard Four Syllabus
Standard Five
Standard Six Syllabus
Standard Seven Syllabus
Standard Eight Syllabus Volumes 1 & 2   /   Social Studies Syllabus

   

Subjects

English
Kiswahili
Mathematics
Science
Social Studies
Religious Education
Mother Tongue
Creative Arts
Physical Education
Pastoral Programmes
ECDE ( PRE-SCHOOL ) SYLLABUS AVAILABLE
Lower Primary Classes will have 35 lessons of 30 minutes each.
Upper Primary Classes will have 40 lessons of 35 minutes each.

The complete Downloadable Syllabii for all Primary Schools and ECDE are in the Gold Account: 

CLICK HERE TO LOGIN

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KCSE Class Notes

You brought the idea, we've now delivered it to the comfort of your chair. Now you can have professional teachers teach you Mathematics, Chemistry, Biology and Physics at your convenience. Real time lessons - Now in DVD^s so you can have classes when you want. Use your Computer or household DVD Players to learn for as long as you wish. Do not miss this Great opportunity you will never find elsewhere.

If you never got a concept from your regular class teachers, you now have the opportunity to rewind it from KCSE ONLINE DVD^S. If you don't wish to sit in a regular class, or you are a private candidate, this is a perfect solution to your Quest. Study at home or office at your own pace. No more search of private tutors. We've brought them right at your studyroom.
 

Sample Video Lessons ( Click image to Play )

Items: 4 Steps

Duration: 13 minutes 46 seconds

Filename: lessons.html

Mathematics Sample Lesson

2 minutes 20 seconds

 

Chemistry Sample Lesson

3 minutes 26 seconds

 

Biology Sample Lesson

4 minutes 52 seconds

Physics Sample Lesson

3 minutes 8 seconds

* The videos listed below are now available in DVD^s so you can watch from a computer or household DVD Player

1. ALL CHEMISTRY LESSONS  DVD  - 3300/-

2. ALL BIOLOGY LESSONS DVD  - 3200/-

3. ALL PHYSICS LESSONS  DVD  - 3400/-

4. ALL MATHEMATICS LESSONS ( Packed in 3 DVD^s )  - 3500/-

Quoted prices include same day delivery of the DVD^s to your nearest Parcel Service ( Kenya Only)

Note : Call Patrick on  0721806317  Before you make any transactions

Mathematics Lessons Available

ALGEBRA I

Pre-Algebra Videos

• Order of Operations
• Percents
• Defining Variables
• Additive and Multiplicative Inverses
• Simplifying Expressions and Combining Like Terms

Solving Equations Videos
• Solving Single-step Equations
• Solving Two-step Equations
• Solving Multi-step Equations
• Solving Equations with a Variable on Both Sides
• Ratios
• Proportions
• Solving Literal Equations
• Percent Change

Solving and Graphing Inequalities Videos • Linear Inequalities
• Solving and Graphing Inequalities using Addition or Subtraction
• Solving and Graphing Inequalities using Multiplication or Division
• Solving and Graphing Multistep Inequalities
• Solving and Graphing Compound Inequalities
• Graphing 2 Variable Inequalities

Absolute Value Videos
• Definitions and Applications of Absolute Value
• Absolute Value Equations
• Absolute Value Inequalities
• Absolute Value Inequality Graphs in Two Variables
• Shifts in Absolute Value Graphs

Graphs and Functions Videos
• Plotting Points and Naming Quadrants
• Interpreting Graphs
• Relations and Determining Whether a Relation is a Function
• Function Notation
• Connecting Graphs, Tables, and Equations
• Writing an Equation to Describe a Table
• Writing an Equation to Describe Pictures
• Domain and Range

Linear Equations and Their Graphs Videos• Definition of Slope
• Finding the Slope of a Line from a Graph
• Finding the Slope of a Line from 2 Points
• Finding the Slope of a Line from an Equation
• Writing Equations in Slope-Intercept Form
• Graphing Lines using a Table of Values
• Applications of Linear Equations
• Standard Form of Linear Equations
• Intercepts of Linear Equations
• Graphing Lines using Intercepts
• Point-Slope Form of Linear Equations
• Parallel and Perpendicular Lines
• Direct Variation
• Inverse Variation
• Finding the Equation of a Graphed Line
• How to Graph a Line using y=mx+b

Solving Systems of Equations Videos• Introduction to Systems of Equations
• Solving Systems of Equations by Graphing
• Solving Systems of Equations using Substitution
• Solving Systems of Equations using Elimination
• Inconsistent and Dependent Systems of Equations
• Solving Systems using Matrices
• Systems of Inequalities

Word Problems Using Systems of Equations Videos • Mixture Problems
• Rate Word Problems
• Work Word Problems
• Coin Word Problems
• Age Word Problems
• Sum of Digits
• Percent Concentrations
• Selling Multiple Items

Exponents Videos
• Introduction to Exponents
• Multiplication and Division Properties of Exponents
• Zero and Negative Exponents
• Scientific Notation
• Simplifying Expressions with Exponents

Polynomials Videos
• Polynomial Vocabulary
• Adding and Subtracting Polynomials
• Multiplying Monomials and/or Binomials and FOIL
• Multiplying Polynomials using Area Models
• Multiplying Larger Degree Polynomials using Distributing
• Multiplying Polynomials: Special Cases

Factoring Videos
• Greatest Common Factors
• Difference of Perfect Squares
• Factoring Trinomials, a = 1
• Factoring Trinomials, a is not 1
• Factoring: Special Cases Part I
• Factoring: Special Cases Part II

Quadratic Equations and Functions Videos• Exploring Quadratic Graphs
• Graphing Quadratic Equations
• Vertical and Horizontal Shifts of Quadratic Graphs
• Dilations of Quadratic Graphs
• Vocabulary of Quadratic Polynomials
• Solving Quadratic Equations by Factoring
• Solving Quadratic Equations Using Square Roots
• Completing the Square
• The Quadratic Formula
• The Discriminant
• The Vertex and Axis of Symmetry
• Applications of Quadratic Equations

Radical Expressions and Equations Videos• Simplifying Radical Expressions
• Adding and Subtracting Radical Expressions
• Multiplying and Distributing Radical Expressions
• Dividing Radicals and Rationalizing the Denominator
• Solving Radical Equations
• Graphing Radical Equations using a Table
• Graphing Radical Equations using Shifts
• Estimating Square Roots
• Cube Roots

Rational Expressions and Functions Videos• Introduction to Rational Functions
• Simplifying Rational Functions with Factoring and GCFs
• Multiplying and Dividing Rationals
• Dividing Polynomials
• Adding and Subtracting Rational Expression
• Solving Rational Equations with Like Denominators
• Solving Rational Equations with Unlike Denominators

Introduction to Statistics Videos• Mean
• Median
• Mode
• Range
• Probability
• Scatterplots and Correlations
 

ALGEBRA II

Graphs of Linear Equations Videos
• Finding the Slope of a Line from a Graph
• Finding the Slope of a Line from an Equation
• Applications of Linear Equations
• Rectangular Coordinate System
• Midpoint Formula
• Slope
• Slope-Intercept Form of a Line
• Point-Slope Form of a Line
• Standard Form of a Line

Functions Videos
• Introduction to Functions
• Domain and Range
• Function Notation
• Direct Variation
• Indirect Variation
• Joint and Combined Variation
• Composition of Functions

Systems of Linear Equations Videos
• Solving a System of Linear Equations in Two Variables
• Solving a Linear System in Three Variables with a Solution
• Solving a Linear System in Three Variables with no or Infinite Solutions

Matrices Videos
• Introduction to Matrices
• Matrix Operations
• Augmented Matrices
• Matrix Multiplication

Polynomials• Introduction to Polynomials
• Polynomial Function
• Basic Polynomial Graphs
• Basic Transformations
• Multiplying Polynomials
• Multiplying Complicated Polynomials
• Pascal's Triangle
• Binomial Theorem
• Dividing Polynomials using Long Division
• Dividing Polynomials using Synthetic Division
• Using Synthetic Division to Evaluate Polynomials

Factoring Videos
• Review of the Methods of Factoring
• Factoring Complicated Expressions
• Factoring the Sum or Difference of Cubes
• Using Synthetic Division to Factor
• Solving by Factoring
• Rational Roots Theorem
• Using Synthetic Division to Solve an Equation

Rational Expressions and Functions Videos
• Definition and Domain of a Rational Expression
• Multiplying and Dividing Rational Expressions
• Adding and Subtracting Rational Expressions
• Simplifying Complex Fractions
• Solving a Rational Equation
• Graphing a Rational Expression
• Solving a Rational Equation for a parameter

Roots and Radicals Videos
• Introduction to Radicals
• Radicals and Absolute Values
• Rational Exponents
• Evaluating Rational Exponents
• Rational Exponents with Negative Coefficients
• Rules for Rational Exponents
• Simplifying Radicals using Rational Exponents
• Multiplying Radicals of the Same Root
• Multiplying Radicals of Different Roots
• Rationalizing the Denominator with Higher Roots
• Rationalizing a Denominator with a Binomial
• Solving an Equation with Radicals
• Introduction to Imaginary Numbers
• Adding and Subtracting Complex Numbers
• Multiplying Complex Numbers
• Dividing Complex Numbers
• Powers of i

Quadratic Equations and Inequalities Videos
• Dilations of Quadratic Graphs
• Vocabulary of Quadratic Polynomials
• Solving Quadratic Equations by Factoring
• Solving Quadratic Equations Using Square Roots
• Solving a Quadratic by Completing the Square
• Deriving the Quadratic Formula
• Overview of the Different Methods of Solving a Quadratic Equation
• The Discriminant of a Quadratic Equation
• Solving Quadratic Equations in Disguise
• Introduction to Parabolas
• Finding the Vertex of a Parabola by Completing the Square
• Finding Intercepts, Domain, Range and Vertex of a Parabola
• Finding the Maximum or Minimum of a Quadratic
• Graphing a Horizontal Parabola
• Graphing a Quadratic Inequality
• Solving a Quadratic Inequality using a Sign Chart
• Focus and Directrix of a Parabola

Inverse, Exponential and Logarithmic Functions Videos
• Definition of One-to-One Functions
• Definition of Inverse
• Finding an Inverse Algebraically
• Proving Two Functions are Inverses
• Finding an Inverse Graphically
• Exponential Functions and their Graphs
• Solving Exponential Equations with the 'Same' Base
• Introduction to Logarithms
• Solving Simple Logarithmic Equations
• Function Notation with Logs and Exponentials
• Graph of Logarithmic Functions
• Product Rule of Logarithms
• Quotient Rule of Logarithms
• Power Rule of Logarithms
• Expanding Logarithms
• Condensing Logarithms
• Common and Natural Logarithms
• Change of Base Formula
• Solving Exponential Equations with the Different Bases
• Solving a Logarithmic Equation
• Solving a Logarithmic Equation with Multiple Logs
• Compound Interest (Finite Number of Calculations)
• Compound Interest (Continuously)
• Exponential Growth and Decay
• Evaluating a Logarithmic Expression in terms of Known Quantities

Conic Sections Videos
• Introduction to Conic Sections
• The Circle
• The Ellipse
• The Hyperbola
• Transformations of a Hyperbola
• Conic Section Formulas

Sequences and Series Videos
• Introduction to Sequences
• Series and Summation Notation
• Arithmetic Sequences
• Arithmetic Series
• Geometric Sequences
• Geometric Series
• Recursion Sequences
• Mathematical Induction

Combinatorics Videos
• Introduction to Probability
• Fundamental Counting Principal
• Permutations
• Combinations
• Combinations vs. Permutations
• Probability of Multiple Events
• Probability of Independent Events
• Using the Complement to Calculate Probability
• Probability of Dependent Events
• Conditional Probability

Additional Topics Videos
• Step Functions
• Using the Calculator
• Common Algebra II Mistakes
• Piecewise Functions
• Circle Tic Tac Toe Fun

Real Numbers Videos
• Introduction to Real Numbers
• Analyzing Data
• Properties of Real Numbers

Linear Equations Videos
• Solving Linear Equations
• Solving for a Parameter in a Linear Equation
• Applied Linear Equations: Geometry Problem
• Applied Linear Equations: Mixture Problem
• Applied Linear Equations: Investment Problem
• Applied Linear Equations: Tax Problem
• Applied Linear Equations: Distance Problem
• Applied Linear Equations: Collection Problem
• Applied Linear Equations: Consecutive Numbers

Linear Inequalities Videos
• Solving Linear Inequalities
• Solving a Three-part Linear Inequality
• Applied Linear Inequalities
• Set Operation: Union
• Set Operation: Intersection

Exponents Videos
• Introduction to Exponents
• Rules of Exponents
• Scientific Notation
 

Precalculus

Conic Sections Videos Videos
• Introduction to Conic Sections
• The Circle
• The Ellipse
• The Hyperbola
• Transformations of a Hyperbola
• Conic Section Formulas

Sequences and Series Videos Videos
• Introduction to Sequences
• Series and Summation Notation
• Arithmetic Sequences
• Arithmetic Series
• Geometric Sequences
• Geometric Series
• Recursion Sequences
• Mathematical Induction

Equations of Lines, Parabolas and Circles Videos
• Parallel and Skew Lines
• Parallel Planes and Lines
• Converse of Parallel Lines Theorem
• Constructing the Perpendicular Bisector
• Introduction to Parabolas
• Finding the Vertex of a Parabola by Completing the Square
• Finding Intercepts, Domain, Range and Vertex of a Parabola
• The Circle
• Computing Difference Quotients

Polynomial and Rational Functions Videos
• Power Functions
• Integer Power Functions
• Polynomial Functions
• Graphing Polynomial Functions
• Graphing Polynomial Functions with Repeated Factors
• Find an Equation of the Polynomial Function
• Finding Maximum and Minimum Values
• Finding Zeros of a Polynomial Function
• Using the Conjugate Zeros Theorem
• The Reciprocal Transformation
• Introduction to Rational Functions
• Limits of Rational Functions
• Limits at a Glance
• Graphing Rational Functions, n less than m
• Graphing Rational Functions, n=m
• Graphing Rational Functions, n>m
• Graphs with Holes

Exponential and Logarithmic Functions Videos
• Exponential Functions and their Graphs
• Solving Exponential Equations with the 'Same' Base
• Introduction to Logarithms
• Solving Simple Logarithmic Equations
• Function Notation with Logs and Exponentials
• Graph of Logarithmic Functions
• Product Rule of Logarithms
• Quotient Rule of Logarithms
• Power Rule of Logarithms
• Expanding Logarithms
• Condensing Logarithms
• Common and Natural Logarithms
• Change of Base Formula
• Solving Exponential Equations with the Different Bases
• Solving a Logarithmic Equation
• Solving a Logarithmic Equation with Multiple Logs
• Compound Interest (Finite Number of Calculations)
• Compound Interest (Continuously)
• Evaluating a Logarithmic Expression in terms of Known Quantities
• Exponential Functions
• Logarithmic Functions
• Properties of Logarithms
• The Number e and the Natural Logarithm
• Exponential Growth and Decay

Basic Trigonometry Videos
• Trigonometric Ratios: Sine
• Trigonometric Ratios: Cosine
• Trigonometric Ratios: Tangent
• Inverse Trigonometric Functions
• Angle of Elevation and Depression
• Using Sine to Calculate the Area of a Triangle
• The Law of Sines
• The Law of Cosines

Trigonometric Functions Videos
• Radian Measure of Angles
• The Definitions of Sine and Cosine
• Evaluating Sine and Cosine at Special Acute Angles
• Evaluating Sine and Cosine at Other Special Angles
• Graphs of the Sine and Cosine Functions
• Transforming the Graphs of Sine and Cosine
• More Transformations of Sine and Cosine
• Find an Equation for the Sine or Cosine Wave
• The Tangent Function
• Evaluating the Tangent Function
• Graph of the Tangent Function
• Transforming the Tangent Graph
• Intercepts and Asymptotes of Tangent Functions
• Trigonometric Identities
• The Reciprocal Trigonometric Functions
• Graphing the Reciprocal Trigonometric Functions
• Using Trigonometric Identities
• Transforming the Cotangent Graph
• Transforming Secant and Cosecant
• Asymptotes of Secant, Cosecant, and Cotangent

Advanced Trigonometry Videos
• The Inverse Sine Function
• The Inverse Cosine Function
• The Inverse Tangent Function
• Using the Inverse Trigonometric Functions
• Solving Trigonometric Equations
• Trigonometric Equations that Require Factoring
• The Cosine Addition Formulas
• The Sine Addition Formulas
• Using the Sine and Cosine Addition Formulas to Prove Identities
• The Double-Angle Formulas
• Other Forms of the Cosine Double-Angle Formula
• The Half-Angle Identities
• Angle Inclination of a Line

Vectors and Parametric Equations Videos
• The Geometric Representation of Vectors
• Adding Vectors
• The Resultant of Two Forces
• Components of a Force
• Navigation Problems
• Algebraic Representation of Vectors
• Addition and Scalar Multiplication of Vectors
• Unit Vectors
• The Vector Equation of a Line
• Motion Along a Line
• Parametric Equations and Motion
• Parametrizing a Line Segment
• Parametrizing a Circle
• The Dot Product of Vectors
• The Angle Between Vectors
• Introduction to the 3D Coordinate System
• Vector Operations in 3D
• The Midpoint and Distance Formulas in 3D
• Lines in 3D
• Perpendicular, Parallel and Skew Lines in Space
• Introduction to Planes
• Vectors and Planes
• The Angle Between Planes

Polar Coordinates and Complex Numbers Videos
• Introduction to Polar Coordinates
• Converting from Rectangular Coordinates to Polar
• Converting from Polar Coordinates to Rectangular
• The Distance Formula in Polar Coordinates
• Lines in Polar Coordinates
• Symmetry of Polar Graphs
• Graphing Polar Equations
• Families of Polar Curves: Circles, Cardiods, and Limacon
• Families of Polar Curves: Roses
• Families of Polar Curves: Conic Sections
• The Complex Plane
• Trigonometric Form of Complex Numbers
• Converting Complex Numbers From Trigonometric Form to Rectangular
• Converting Complex Numbers From Rectangular Form to Trigonometric
• Multiplying Complex Numbers
• Dividing Complex Numbers
• DeMoivre's Theorem
• The Euler Formula
• Finding the Roots of a Complex Number
• More Roots of Complex Numbers

Systems of Linear Equations and Matrices Videos
• Square Matrices
• The Identity Matrix
• The Inverse of a Square Matrix
• Solving Linear Systems Using Matrix Algebra
• 2x2 Determinants
• 3x3 Determinants
• Simplifying Determinants
• Cramer's Rule
• Area With Determinants
• The Cross Product of Vectors
• Area With the Cross Product
• Invertible Square Matrices and Determinants

Topics in Discrete Math Videos
• Pascal's Triangle
• Binomial Theorem
• Introduction to Probability
• Fundamental Counting Principal
• Permutations
• Combinations
• Combinations vs. Permutations
• Probability of Multiple Events
• Probability of Independent Events
• Using the Complement to Calculate Probability
• Probability of Dependent Events
• Conditional Probability

Linear Equations and Inequalities Videos
• Solving and Graphing Compound Inequalities
• Graphing 2 Variable Inequalities
• Solving Linear Equations
• Solving for a Parameter in a Linear Equation
• Applied Linear Equations: Geometry Problem
• Applied Linear Equations: Mixture Problem
• Applied Linear Equations: Investment Problem
• Applied Linear Equations: Tax Problem
• Applied Linear Equations: Distance Problem
• Applied Linear Equations: Collection Problem
• Applied Linear Equations: Consecutive Numbers
• Solving Linear Inequalities
• Solving a Three-part Linear Inequality
• Applied Linear Inequalities
• Set Operation: Union
• Set Operation: Intersection
• Solving "Greater Than" Absolute Value Inequalities
• Solving "Less Than" Absolute Value Inequalities

Introduction to Functions Videos
• Computing Difference Quotients
• Seven Elementary Functions and Their Graphs
• Finding the Domain of a Function
• Graphing the Transformation y = a f(x) + k
• Graphing the Transformation y = f(x - h)
• Domain Restrictions and Functions Defined Piecewise
• The Reflection y = f(-x)
• Symmetry of Graphs: Odd and Even Functions
• The Greatest Integer Function
• The Transformation y = f(bx)

Calculus

Limits and Continuity Videos
• Limits: A Numerical Approach
• One-Sided Limits
• Limits: A Graphical Approach
• Infinite Limits; Vertical Asymptotes
• Continuity
• Continuous Functions
• Evaluating Limits Algebraically, Part 1
• Evaluating Limits Algebraically, Part 2
• Limits and End Behavior

The Derivative  Videos
• Average Velocity
• Average Rate of Change
• Instantaneous Velocity
• Instantaneous Rate of Change
• The Definition of the Derivative
• The Derivative Function
• Derivative Notation
• Derivatives of Linear Functions
• Derivatives of Power Functions
• Derivatives of Polynomial Functions
• An Important Limit
• Derivatives of Exponential Functions
• Derivatives of Logarithmic Functions

Techniques of Differentiation Videos
• The Product Rule
• The Quotient Rule
• The Chain Rule
• Chain Rule: The General Power Rule
• Chain Rule: The General Exponential Rule
• Chain Rule: The General Logarithm Rule

Applications of the Derivative Videos
• Intervals of Increase and Decrease
• Critical Points
• Relative Maxima and Minima
• The First Derivative Test for Relative Maximum and Minimum
• Concavity and Inflection Points
• The Second Derivative Test for Relative Maximum and Minimum
• Curve Sketching with Derivatives
• Optimization Using the Closed Interval Method
• Optimization Using the First Derivative Test
• Optimization Using the Second Derivative Test
• Economics: Cost & Revenue
• Economics: Marginal Cost & Revenue
• Optimization Problems: Applications to Economics

Antiderivatives and Differential Equations Videos
• Definition of Antiderivatives
• Antidifferentiation
• Definition of Indefinite Integrals
• Indefinite Integrals
• Complicated Indefinite Integrals
• The Method of Substitution
• Simple Substitutions
• Substitutions Involving e^x or ln(x)
• Tricky Substitutions Involving Radicals
• Differential Equations
• Position, Velocity and Acceleration
• The Differential Equation Model for Exponential Growth

The Definite Integral Videos
• Approximating Area Using Rectangles
• The Definite Integral
• The Fundamental Theorem of Calculus
• Computing Definite Integrals using Substitution
• Definite Integrals As Net Change
• Definite Integrals and Area
• Average Value of a Function
 

Geometry

Geometry Building Blocks Videos
• Three Undefined Terms: Point, Line, and Plane
• Counterexample
• Writing a Good Definition
• Postulate, Axiom, Conjecture
• Converse
• Line Segments
• Rays
• Parallel and Skew Lines
• Midpoints and Congruent Segments
• Parallel Planes and Lines
• Vertex and Diagonals
• Calculating the Midpoint
• Angles: Types and Labeling
• Using a Protractor
• Angle Bisectors
• Supplementary and Complementary Angles
• Polygons
• Types of Triangles
• Perimeter
• Parts of a Circle

Reasoning, Diagonals, Angles and Parallel Lines Videos
• Inductive Reasoning
• Deductive Reasoning
• Number of Diagonals in a Polygon
• Number of Handshakes at a Party
• Adjacent Angles
• Vertical Angles
• Corresponding Angles
• Alternate Interior Angles
• Alternate Exterior Angles
• Same Side Interior and Same Side Exterior Angles
• Converse of Parallel Lines Theorem

Constructions Videos
• Duplicating a Line Segment
• Duplicating an Angle
• Constructing the Perpendicular Bisector
• Constructing a Perpendicular to a Line
• Constructing an Angle Bisector
• Constructing Parallel Lines
• Constructing Altitudes
• Constructing a Median
• Constructing a Triangle Midsegment
• Point of Concurrency
• Circumscribed and Inscribed Circles and Polygons
• Constructing the Incenter
• Constructing the Circumcenter
• Constructing the Orthocenter
• Constructing the Centroid
• Constructing a Perpendicular at a Point on a Line

Triangles Videos
• Triangle Angle Sum
• Isosceles Triangles
• Triangle Side Inequalities
• Triangle Side and Angle Inequalities
• Remote Interior Angles
• SSS and SAS
• ASA and AAS
• HL
• Why SSA and AAA Don't Work as Congruence Shortcuts
• CPCTC
• Two Column Proofs
• Flowchart Proofs
• Special Isosceles Triangle Properties

Polygons Videos
• Polygon Angle Sum
• Equiangular Polygon Sums
• Exterior Angles of a Polygon
• Kite Properties
• Trapezoid Properties
• Triangle Midsegment Properties
• Trapezoid Midsegment Properties
• Parallelogram Properties
• Trapezoid Arch and Panel Design Problem
• Rhombus Properties
• Rectangle and Square Properties

Circles Videos
• Locus and Definition of a Circle and Sphere
• Central Angles and Intercepted Arcs
• Chords and a Circle's Center
• Radii to Tangents
• Tangent Segments to a Circle
• Inscribed Angles
• Angles in Semicircles and Chords to Tangents
• Cyclic Quadrilaterals and Parallel Lines in Circles
• Circumference
• Arc Length
• Secants

Transformations Videos
• Transformations and Isometries
• Translations
• Reflections
• Rotations
• Compositions of Transformations
• Reflectional Symmetry
• Rotational Symmetry
• Dilations
• Glide Reflections

Area Videos
• Area of Parallelograms
• Area of Triangles
• Area of Trapezoids
• Solving Formulas
• Area of Kites and Rhombuses
• Center and Apothem of Regular Polygons
• Area of Regular Polygons
• Area of Circles
• Area of a Sector
• Area of a Segment
• Area of an Annulus
• Regions Between Circles and Squares
• Surface Area of Prisms
• Surface Area of Cylinders
• Surface Area of Pyramids
• Surface Area of Cones
• Surface Area of Joined Solids

Pythagorean Theorem Videos
• Pythagorean Theorem Proofs
• Square Root Operations
• Using the Pythagorean Theorem to find a Missing Hypotenuse
• Using the Pythagorean Theorem to find a Missing Leg
• Space Diagonals
• Converse of the Pythagorean Theorem
• 45-45-90 Triangles
• 30-60-90 Triangles
• Distance Formula
• Equation of a Circle
• Calculating Coordinates in the Unit Circle

Volume Videos
• 3-D Solid Properties
• Volume of Prisms
• Volume of Cylinders
• Volume of Cones
• Volume of Pyramids
• Solving Equations with Squares and Cubes
• Volume of Spheres
• Surface Area of Spheres

Similarity Videos
• Solving Proportions
• Properties of Similar Polygons
• Similarity Shortcuts
• Similar Triangles in Circles and Right Triangles
• Indirect Measurement
• Proportional Segments Between Parallel Lines
• Corresponding Parts of Similar Triangles
• Angle Bisectors and Opposite Side Ratios
• Similarity and Area Ratios
• Similarity and Volume Ratios

Basic Trigonometry Videos
• Trigonometric Ratios: Sine
• Trigonometric Ratios: Cosine
• Trigonometric Ratios: Tangent
• Inverse Trigonometric Functions
• Angle of Elevation and Depression
• Using Sine to Calculate the Area of a Triangle
• The Law of Sines
• The Law of Cosines
 

Trigonometry

Pythagorean Theorem Videos
• Pythagorean Theorem Proofs
• Square Root Operations
• Using the Pythagorean Theorem to find a Missing Hypotenuse
• Using the Pythagorean Theorem to find a Missing Leg
• Space Diagonals
• Converse of the Pythagorean Theorem
• 45-45-90 Triangles
• 30-60-90 Triangles
• Distance Formula
• Equation of a Circle
• Calculating Coordinates in the Unit Circle

Basic Trigonometry Videos
• Trigonometric Ratios: Sine
• Trigonometric Ratios: Cosine
• Trigonometric Ratios: Tangent
• Inverse Trigonometric Functions
• Angle of Elevation and Depression
• Using Sine to Calculate the Area of a Triangle
• The Law of Sines
• The Law of Cosines

Trigonometric Functions Videos
• Radian Measure of Angles
• The Definitions of Sine and Cosine
• Evaluating Sine and Cosine at Special Acute Angles
• Evaluating Sine and Cosine at Other Special Angles
• Graphs of the Sine and Cosine Functions
• Transforming the Graphs of Sine and Cosine
• More Transformations of Sine and Cosine
• Find an Equation for the Sine or Cosine Wave
• The Tangent Function
• Evaluating the Tangent Function
• Graph of the Tangent Function
• Transforming the Tangent Graph
• Intercepts and Asymptotes of Tangent Functions
• Trigonometric Identities
• The Reciprocal Trigonometric Functions
• Graphing the Reciprocal Trigonometric Functions
• Using Trigonometric Identities
• Transforming the Cotangent Graph
• Transforming Secant and Cosecant
• Asymptotes of Secant, Cosecant, and Cotangent

Advanced Trigonometry Videos
• The Inverse Sine Function
• The Inverse Cosine Function
• The Inverse Tangent Function
• Using the Inverse Trigonometric Functions
• Solving Trigonometric Equations
• Trigonometric Equations that Require Factoring
• The Cosine Addition Formulas
• The Sine Addition Formulas
• Using the Sine and Cosine Addition Formulas to Prove Identities
• The Double-Angle Formulas
• Other Forms of the Cosine Double-Angle Formula
• The Half-Angle Identities
• Angle Inclination of a Line

Chemistry Lessons Available

Introduction to Chemistry Videos
• Scientific Method Steps
• Chemistry Definition
• Dimensional Analysis
• Tips for Counting and Predicting Significant Figs
• Solving Significant Figs Involving Addition and Subtraction
• Solving Significant Figs Involving Multiplication and Division
• Scientific Units
• Scientific Notation
• Significant Figures

Matter Videos
• Physical Matter Properties - Chemical Matter Properties
• States of Matter
• Changes in Matter
• Conservation of Mass
• Law of Definite Proportions - Law of Multiple Proportions
• Mixtures
• Elements and Compounds
• Identifying Chemical versus Physical Changes

The Atom Videos
• Atomic Structure
• Quantum Numbers
• Atomic Emission Spectra
• Atomic Number - Isotopes
• Atomic Mass
• Atomic Orbitals
• Orbital Diagrams
• Electron Configuration
• Exceptions to Electron Configuration
• Valence Electrons
• Electron Configurations for Transition Metals and Their Ions Problem
• Energy in Hydrogen Emission Spectrum Problem
• Isotopes, Isoelectronics and Isomers
• Tips on Deciding if an Atom is Excited
• Electromagnetic Spectrum
• Photoelectric Effect
• Planck's Constant

The Periodic Table Videos
• Periodic Table Overview
• s-Block Elements
• p-Block Elements
• d-Block Elements - f-Block Elements
• Transition Metals - Inner Transition Metals
• Boron Family - Carbon Family - Nitrogen Family
• Oxygen Family
• Halogens
• Noble Gases
• Electronegativity
• Ionization Energy - Periodic Trends
• Atomic Radii - Ionic Radii
• Remembering Common Ions for Transition Metals
• Tips on Electron Configuration
• Understanding the Trend of Atomic vs Ionic Radii

Chemical Bonds Videos
• Ionic Bond
• Ionic Compound Properties
• Metallic Bond
• Covalent Bonds
• Hydrates
• Lewis Electron Dot Diagram
• Polarity
• Naming Covalent Compounds
• Naming Ionic Compounds
• Hybridization
• Intermolecular Forces
• VSPER Model
• Tips for Determining Bond Type
• Tips for Determining Hybridization
• Tips for Drawing Lewis Electron Dot Diagrams
• Tips for Identifying Intermolecular Forces
• Tips for Naming Covalent Compounds
• Tips for Naming Ionic Compounds
• Tips for Writing Formulas of Ionic Compounds

Chemical Reactions Videos
• Chemical Equations
• Balancing Chemical Equations
• Synthesis Reactions
• Combustion Reactions
• Decomposition Reaction
• Single Replacement Reaction
• Double Replacement Reactions
• Net Ionic Equation
• Types of Reactions
• Chemistry Mole
• Molar Mass
• Law of Conservation of Mass
• Empirical Formula - Molecular Formula
• Stoichiometry
• Percent Yield
• Limiting Reactants
• How to Balance Reactions
• How to Solve Single Replacement Reactions
• Net Ionic Reactions
• Predicting Products
• Types of Reactions

Kinetic-Molecular Theory Videos
• Three States of Matter
• Phase Change
• Phase Diagrams
• Boiling Point
• Vapor Pressure
• Gases
• Avogadro's Principle
• Dalton's Law
• Graham's Law
• Boyle's Law
• Charles Law
• Gay Lussac's Law
• Combined Gas Law
• Ideal Gas Law
• 5 Tips on How to Solve Gas Law Problems
• Tips on Finding the Units of k Instantly
• Tips on How to Manipulate the Ideal Gas Law
• Tips on when to use Differential Rate Laws and Integrated Rate Laws

Chemical Solutions Videos
• Osmosis
• Types of Solutions
• Solvation
• Molarity - Molality
• Colligative Properties
• Vapor Pressure Lowering
• Boiling Point Elevation
• Freezing Point Depression
• Colloids - Suspensions
• Beer's Law
• Boiling Point Elevation & Freezing Point Depression
• Solving Stoichiometry Problems Using Millimoles
• Tips About Osmotic Pressure
• Tips for Classifying Electrolytes
• Tips for Dilutions

Chemical Reaction Rates Videos
• Collision Theory
• Reaction Rates Factors
• Reaction Mechanism
• Reaction Rate Laws
• Reaction Rate Problems
• Energy Diagrams
• Determining Order of a Reaction Using a Graph
• Factors Affecting Collision Based Reaction Rates
• Factors Affecting Homogeneous Reactions
• Rates of Disappearance and Appearance
• Tips for Figuring Out What a Rate Law Means
• Tips on Differentiating Between a Catalyst and an Intermediate
• Understanding Energy Diagrams

Chemical Equilibrium Videos
• Chemical Equilibrium Definition
• Heterogeneous Equilibrium - Homgeneous Equilibrium
• Le Chatelier's Principle
• Equilibrium Changes
• Solubility Equilibrium
• Equilibrium Constants from Initial Concentrations
• Equilibrium Constants When Manipulating Equations
• Tips for Converting to Kp from Kc
• Tips for Determining Direction Shifts in Reactions
• Tips for Le Chateliers Principle
• Tips for Writing Equilibrium Constant Expressions

Acids and Bases Videos
• Acid and Base Properties
• Strength of Acids and Bases
• Salts
• Buffered Solutions
• pH and pOH
• Bronsted-Lowry Model
• Conjugate Acids and Bases
• Equilibrium Systems
• Naming Acids
• Tips for Acid-Base Net Ionic Equations
• Tips for Calculating pH and pOH and More
• Tips for Conjugate Acid and Base Formulas
• Tips for Identifying Acid and Base Strength
• Tips for IDing if a Solution Is a Buffer
• Tips for Making a Buffer via Neutralization

Electrochemistry Videos
• Oxidation Reduction Reactions - Redox
• Half-reactions
• Voltaic Cells
• Chemistry Corrosion
• Electrolysis
• Oxidation Number Method
• Balancing Redox Reactions Using Oxidation Number Method
• Balancing Redox Using Half-Reaction Method
• Determining What is Oxidized or Reduced
• How Many Electrons Are Transferred in Redox Equations
• Tips for Approximating Delta G from Cell Potential
• Tips for Assigning Oxidation Numbers
• Tips for Determining Oxidation Numbers
• Tips for Using the Nernst Equation
• Understanding Redox Reactions

Organic Chemistry Videos
• Hydrocarbons
• Alkanes
• Naming Alkanes
• Alkenes-Alkynes
• Naming Alkenes-Naming Alkynes
• Aromatic Hydrocarbon
• Isomers- Stereoisomers
• Functional Groups
• Tips on Ranking Melting Points of Different Hydrocarbons
• Tips on Recognizing Structural Isomers

Biochemistry Videos
• Chemistry Carbohydrates
• Fats and Lipids
• Proteins
• Nucleic Acids
• Determining if a R-Group in an Amino Acid Is Polar or Nonpolar
• Tips for Making Proteins from DNA

Nuclear Chemistry Videos
• Nuclear Reactions
• Radioactivity
• Beta Decay
• Alpha Decay
• Electron Capture
• Nuclear Stability
• Transmutation
• Half-life
• Fission
• Fusion
• Tips About Nuclear Fusion and Nuclear Fission
• Tips for Half-Life Calculations
• Tips for Nuclear Radiation Equations

Thermochemistry Videos
• Specific Heat
• Bomb Calorimeters
• Enthalpy
• Thermochemical Equation
• Hess's Law
• Spontaneous Process
• Heat of Formation
• Gibbs Free Energy
• Heat of Fusion - Heat of Vaporization
• Deciding if a Reaction is Spontaneous
• Tips on Deciphering and Interpreting Delta H
• Understanding the Difference between Delta H and Delta S
• Tips on Understanding the Difference Between Calorimeters
• Tips on When to Use Specific Heat
• Conservation of Energy
• Second Law of Thermodynamics
• Entropy

Biology Lessons Available

Foundation of Biology Videos

• Biology Definition
• Scientific Method Steps
• Science Experiments
• Characteristics of Life

Chemical Basis of Life Videos
• Chemistry Carbohydrates
• Fats and Lipids
• Organic Compounds
• Hydrogen Bonds
• Enzymes
• Proteins
• Nucleic Acids
• Physical Matter Properties - Chemical Matter Properties
• Elements and Compounds
• Atomic Structure

Parts of a Cell Videos
• Cell Overview
• Prokaryotic Cells
• Eukaryotic Cells
• Nucleus
• Ribosomes
• Mitochondria - Mitochondrion
• Golgi Apparatus
• Vacuoles-Vesicles
• Chloroplast
• Cilia and Flagella
• Cytoskeleton - Cytoplasm
• Endoplasmic Reticulum
• Cell Membrane - Cell Wall

Cell Functions and Processes Videos
• Osmosis
• Cellular Energy Production
• Cell Transport
• Homeostasis
• Anaerobic Respiration
• Aerobic Respiration
• Cell Diffusion
• Photosynthesis
• Calvin Cycle
• Krebs Cycle
• Light Dependent Reactions
• Electron Transport System

Cell Division and Reproduction Videos
• Chromosome
• Cell Division
• Binary Fission
• Mitosis
• Meiosis
• Asexual Reproduction
• Gametes
• Karyotype
• Gene Expression
• Sex Chromosomes
• Sex-Linked Genes

Mendelian Genetics Videos
• Law of Segregation
• Law of Independent Assortment
• Heredity Theory
• Genetic Variation
• Alleles
• Genotype
• Phenotype
• Punnett Squares
• Codominance - Incomplete Dominance
• Chromosomes Crossing Over - Linked Genes

Molecular Biology Videos
• DNA Structure
• RNA Structure
• DNA Replication
• Protein Synthesis
• Biology Transcription
• Biology Translation
• Genetic Mutation
• Gene Cloning
• Genetically Modified Organisms
• Human Genome Project
• PCR - DNA Fingerprinting
• RFLP - DNA Fingerprinting

Evolution Videos
• Darwins Theory of Evolution
• Natural Selection
• Evolution of Populations
• Hardy-Weinberg
• Microevolution - Macroevolution
• Divergent Evolution
• Convergent Evolution
• Coevolution
• Adaptive Radiation
• Genetic Drift
• Genetic Flow
• Reproductive Isolation - Prezygotic - Postzygotic
• Speciation

Classification Videos
• Classification Overview
• Cladistics
• Phylogenetic Tree
• Plant Kingdom
• Animal Kingdom
• Protist Kingdom
• Fungi Kingdom
• Viruses
• Bacteria Kingdom

The Human Body Videos
• Tissues And Organs
• Digestive System
• Muscular System
• Integumentary System
• Skeletal System
• Endocrine System
• Nervous System
• Sensory System
• Neurons
• Reproductive System
• Respiratory System
• Circulatory System
• Immune System

Plants Videos
• Plant Structure
• Plant Growth
• Plant Reproduction
• Plant Adaptation
• Plant Hormones

Ecology Videos
• Ecology Overview
• Climate Definition
• Biosphere
• Terrestrial Biomes
• Aquatic Biomes
• Population Density
• Dispersion
• Population Growth
• Population Migration
• Behavioral Ecology
• Population Ecology

Communities and Ecosystems Videos
• Biology Community
• Biology Competition
• Symbiotic Relationships
• Keystone Species
• Water Cycle
• Carbon Cycle
• Phosphorus Cycle
• Nitrogen Cycle
• Ecological Pyramids
• Food Chain
• Food Web
• Predation

Conservation Biology• Biodiversity
• Habitat Destruction
• Natural Resource Depletion
• Climate Change
• Atmosphere
• Endangered Species
• Sustainable Development

Physics Lessons Available

Introduction to Physics Videos

• Scientific Method Steps
• Physics Definition
• Unit System
• Scientific Units
• Scientific Notation
• Significant Figures

Linear and Projectile Motion Videos
• Relativity in Motion
• Displacement
• Average Speed
• Speed-Instantaneous Speed
• Average Velocity
• Instantaneous Velocity
• Acceleration
• Free Fall
• Graphs of Motion
• Vector Direction
• Vector Quantities - Scalar Quantities
• Velocity Vectors
• Components of Vectors
• Projectile Motion
• Linear Motion
• Parabolic Motion

Newton's Laws of Motion Videos
• Law of Inertia - Newton's First Law of Motion
• Law of Force and Acceleration - Newton's Second Law of Motion
• Force
• Net Force- Resultant Force
• Law of Action and Reaction - Newton's Third Law of Motion
• Free-Body Force Diagrams
• Tension

Circular Motion and Rotational Mechanics Videos
• Rotation and Revolution
• Rotational Speed
• Centripetal Force
• Centrifugal Force
• Simulated Gravity
• Torque
• Balanced Torques
• Rotational Inertia
• Conservation of Momentum

Energy and Momentum Videos
• Energy
• Work-Energy Theorem
• Power
• Mechanical Energy
• Potential Energy
• Kinetic Energy
• Conservation of Energy
• Momentum
• Impulse

Gravitation Videos
• Gravity Overview
• Center of Mass
• Toppling and Stability
• Newton's Law of Universal Gravitation
• Gravitational Fields
• Tides
• Black Holes

Heat and Thermodynamics Videos
• Conservation of Energy
• Temperature
• Heat
• Pressure
• Kinetic and Potential Energy of Atoms
• Second Law of Thermodynamics
• Entropy
• Internal Energy
• Measurement of Heat
• Thermal Expansion

Heat Transfer and Change of Phase Videos
• Thermal Energy Transfer
• Conduction
• Convection
• Radiant Energy
• Law of Cooling
• Greenhouse Effect
• Evaporation
• Condensation
• Boiling
• Freezing
• Regelation

Solids, Liquids and Gases Videos
• Density
• Elastic Modulus
• Bulk Modulus
• Liquid Pressure
• Archimedes Principle
• Buoyancy
• Flotation
• Pascal's Principle
• Atmospheric Pressure
• Barometer
• Continuity Equation
• Bernoulli's Principle
• Physics Siphoning - Torricellis Law

Vibration and Waves Videos
• Wave Characteristics
• Frequency - Period
• Amplitude
• Wavelength
• Wave Speed
• Wave Phase
• Standing Waves
• Transverse Waves
• Longitudinal Waves
• Sound Waves
• Standing Sound Waves
• Wave Intensity
• Decibel Scale
• Wave Interference - Wave Pulse
• Wave Beats
• Wave Inversion
• Diffraction
• Doppler Effect

Electricity Videos
• Conservation of Charge - Electric Charge
• Charge Transfer - Electroscope
• Electric Force - Coulomb's Law
• Electric Fields
• Electric Potential
• Electrons - Quantization of Electric Charge
• Conductors
• Insulators
• Electric Current
• Resistance
• Potential Difference
• Ohm's Law
• Electric Circuits
• Resistors in Series
• Resistors in Parallel
• Resistor Circuits
• Power
• Capacitors
• Capacitors in Series
• Capacitors in Parallel
• Capacitor Circuits
• RC Circuits

Magnetism Videos
• Magnetic Fields
• Magnetic Domains
• Lorentz Force
• Right hand Rule
• Electric Currents - Magnetic Fields
• Ampere's Law
• Solenoids - Electromagnets
• Faraday's Law - Lenz's Law
• Electromagnetic Induction
• Transformers - Power Transmission

Light Videos
• Electromagnetic Waves
• Electromagnetic Spectrum
• Reflection - Refraction
• Snell's Law
• Double Slit Experiment
• Physics Mirrors
• Physics Lenses
• Ray Diagrams
• Lens Equation

Nuclear Physics Videos
• Beta Decay
• Alpha Decay
• Electron Capture
• Nuclear Stability
• Half-life
• Fission
• Fusion
• Atomic Nucleus
• Nuclear Reactions
• Radioactive Isotopes
• Carbon Dating
• Fission Reactor
• Mass-Energy Equivalence

The Atom and Quantum Physics Videos
• Law of Definite Proportions - Law of Multiple Proportions
• Atomic Emission Spectra
• Atomic Models
• Relative Size of Atoms
• Blackbody Radiation
• Photoelectric Effect
• Planck's Constant
• Compton Scattering
• Light Quanta
• Matter Wave - De Broglie Wavelength
• Quantum Physics

Oscillatory Motion Videos
• Hooke's Law
• Spring Potential Energy
• Pendulum Motion
• Resonance

* The videos listed below are now available in DVD^s so you can watch from a computer or household DVD Player

1. ALL CHEMISTRY LESSONS  DVD  - 3300/-

2. ALL BIOLOGY LESSONS DVD  - 3200/-

3. ALL PHYSICS LESSONS  DVD  - 3400/-

4. ALL MATHEMATICS LESSONS ( Packed in 3 DVD^s )  - 3500/-

Quoted prices include same day delivery of the DVD^s to your nearest Parcel Service ( Kenya Only)

Note : Call Patrick on  0721806317  Before you make any transactions

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