Khan Academy
Khan Academy: Algebra: Complex Numbers: Complex Numbers (Part 1)
Video first reviews what imaginary and complex numbers are. Shows example of graphing a complex number. Gives general explanations and formulas for adding, subtracting, multiplying and dividing complex numbers. Includes link to...
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Khan Academy: Algebra: Ca Algebra I: Graphing Inequalities
This video demonstrates how to solve several test questions related to linear equations and linear inequalities. It demonstrates solving equations, graphing linear inequalities in two variables, and graphing linear equations. [11:42]
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Khan Academy: Chemistry: Groups of the Periodic Table
An explanation of the families, or groups, of the periodic table. [11:51]
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Khan Academy: Algebra: Box and Whisker Plot
Video demonstrates how to create a box-and-whisker plot from a set of data. [13:14]
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Khan Academy: Arithmetic and Pre Algebra: Multiplication 8: Multiplying Decimals
This video shows how to multiply two decimals. Practice problems are available. [3:47]
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Khan Academy: Algebra: Graphing Radical Functions
Video showing how to graph a radical function by specifically choosing values for x that result in easy-to-plot values of y and then plotting the points. [10:17]
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Khan Academy: Arithmetic and Pre Algebra: Algebraic Expressions Lcm
This video explains how to find the least common multiple of algebraic expressions. Practice problems are available. [4:40]
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Khan Academy: Geometry: Ca Geometry: Secants and Translations
Demonstrates solutions to problems #76-80 of California Geometry released state test questions. Problems address tangents to circles, secants to circles, intercepted arcs, translations on the coordinate plane, and rotations on the...
Khan Academy
Khan Academy: Algebra: Introduction to Logarithms
Explains what a logarithm is and the relationship between logarithms and exponents. Practice problems available. [9:48]
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Khan Academy: Trigonometry: More Trig Graphs
Video about translating between the graph and equation of trigonometric functions. Examples consist of writing the equation a sine function from its graph and graphing a cosine function from its equation. [5:13]
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Khan Academy: Algebra: Systems of Equations
This video demonstrates how to solve systems of linear equations in two variables using the elimination method. There are three sample problems shown. [9:57]
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Khan Academy: Algebra: Two Passing Bicycles Word Problem
This video demonstrates how to apply systems of equations to a word problem about two people passing each other on bicycles. The problem also involves constant speeds and distances. [5:39]
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Khan Academy: Statistics: Binomial Distribution 1
Video reviewing binomial probability, including binomial coefficients, and leading up to binomial distributions. An example with the probabilities of the different number of heads in five flips of a coin. Video is also included in the...
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Khan Academy: Algebra: Matrices: Matrix Multiplication (Part 2)
This lesson goes through three examples of matrix multiplication. Explains how the dimensions of matrices affect whether or not the matrices can be multiplied, how to determine if they can be multiplied, and what size the resulting...
Khan Academy
Khan Academy: Trigonometry: Trigonometric Identities
Video showing how to derive two basic trigonometric identities. Includes link to additional practice problems. [9:10]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Level 4 Subtraction
This video teaches subtraction of up to five-digit numbers using borrowing or regrouping. Practice problems are available. [8:47]
Khan Academy
Khan Academy: Algebra: Hairier Slope of a Line
This video demonstrates how to calculate the slope of a line given two points. The video uses the slope formula and the two points given include positive and negative fractions as coordinates. Practice problems available. [6:32]
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Khan Academy: Algebra: Passed Bike Word Problem
This video demonstrates how to set up and solve a system of equations in order to answer a word problem based on rates and elapsed time. [5:54]
Khan Academy
Khan Academy: Algebra: Advanced Ratio Problems
The video tutorial explores advanced ratio problems. The resource investigates the algebra concept through detailed explanations and examples. [9:58]
Khan Academy
Khan Academy: Calculus: 2011 Calculus Ab Free Response #1 Parts B, C, & D
Video shows how to use the definite integral of the velocity function of a particle to determine the distance traveled, average velocity and position of the particle at a given time. [14:37]
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Khan Academy: Algebra: Passing Trains
This video demonstrates how to solve a systems of equations word problem related to the rates of passing trains. The problem involves finding a rate in meters/second and setting up and solving a system of equations. [9:07]
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Khan Academy: Trigonometry: Graphs of Trig Functions
Video exploring the graphs of the basic trigonometric functions. Effects of changes in the equation of the sine function to the period and the amplitude of the graph are shown. Includes link to additional practice problems. [10:17]
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Khan Academy: Algebra: Functions (Part 4)
Video showing how to solve for a function given a composition of functions and one of the functions. Also shows how the problem can be solved using the different multiple choice options. Includes link for additional practice at the top...
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Khan Academy: Chemistry: Electron Configurations
How to determine electron configurations. [10:04]