Khan Academy
Khan Academy: Algebra: Box and Whisker Plot
Video demonstrates how to create a box-and-whisker plot from a set of data. [13:14]
Khan Academy
Khan Academy: Algebra: Pythagorean Theorem
This video tutorial [13:03] explains that the Pythagorean theorem can only be used on right triangles and explains how it is used. Gives several examples using the Pythagorean theorem to find the unknown side of a right triangle....
Khan Academy
Khan Academy: Algebra: How to Rationalize a Denominator
Video working through multiple examples of rationalizing the denominator. Includes some examples with using the conjugate of the denominator as well as an example with variables. Video is also included in the Algebra: ck12.org strand....
Khan Academy
Khan Academy: Algebra: Radical Expressions With Higher Roots
Video first finding the square root of an integer and then working towards finding larger roots of numbers by utilizing fractional exponents and exponent rules. Highest root is the 6th root. Includes an example with a variable. Video is...
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing Rational Expressions
Video shows examples of multiplying and dividing rational expressions. Includes adding restrictions to the simplified answer. [9:19]
Khan Academy
Khan Academy: Algebra: Exponent Properties Involving Quotients
Video explains and uses the quotient of powers rule as well as working with algebraic expressions with negative exponents. Video is also included in the Algebra: ck12.org strand. [9:22]
Khan Academy
Khan Academy: Algebra: Special Products of Binomials
Video explains how to find special binomial products. Four examples are worked that show how to square a binomial. Three examples are worked that show the product of a sum and a difference (a +b)(a - b). This video also appears in the...
Khan Academy
Khan Academy: Algebra: Factoring Special Products
Demonstrates how to solve quadratic equations by factoring. Four equations are solved some involving special products including perfect square trinomials and difference of squares. This video also appears in the Algebra: ck12.org strand....
Khan Academy
Khan Academy: Algebra: Multiplication of Polynomials
Video demonstrates several different types of polynomial multiplication problems: monomial by binomial, monomial by trinomial, binomial by binomial, binomial by polynomial. This video also appears in the Algebra: ck12.org strand....
Khan Academy
Khan Academy: Algebra: Polynomial Division
Video demonstrates polynomial long division using four different example problems. This video also appears in the Algebra: ck12.org strand. [12:09]
Khan Academy
Khan Academy: Algebra: Average or Central Tendency:arithmetic Mean, Median, Mode
Video explains the different measures of center: arithmetic mean, median, and mode. Gives examples of finding each measure of central tendency and discusses the effect of outliers on each. Includes a link to additional practice problems....
Khan Academy
Khan Academy: Algebra: Adding and Subtracting Rational Expressions Example 3
Video shows example of adding and subtracting rational expressions by creating a common denominator. [4:37]
Khan Academy
Khan Academy: Algebra: Stem and Leaf Plots
Video gives example of creating stem-and-leaf plots for data. Includes link to additional problems. [6:45]
Khan Academy
Khan Academy: Algebra: Factor by Grouping and Factoring Completely
Video explains how to use the factor by grouping method to factor trinomials completely. Three different examples of trinomials with leading coefficients other than 1 are solved. One example involves first factoring out a greatest common...
Khan Academy
Khan Academy: Algebra: Exponent Properties Involving Products
Video lesson that first reviews what an exponent is, then introduces and explains different rules of exponents and uses them to simplify algebraic expressions. Includes an explanation of zero exponents. Video is also included in the...
Khan Academy
Khan Academy: Algebra: Solving Quadratic Equations by Square Roots
Video shows how to solve a quadratics in a certain form by isolating the squared term and taking the square root of both sides. Examples help lead into solving quadratics by completing the square. [11:03]
Khan Academy
Khan Academy: Algebra: Asymptotes of Rational Functions
Video explains what asymptotes are and demonstrates how to determine the asymptotes of rational functions. Includes rules for horizontal asymptotes based on the highest power of the numerator and denominator of the rational function....
Khan Academy
Khan Academy: Algebra: Variable Expressions
Video shows how to simplify expressions showing multiplication and how to write products with variables without multiplication signs. Also shows how to evaluate expressions by substituting in specific variable values. [12:26]
Khan Academy
Khan Academy: Algebra: Graphs of Square Root Functions
Video giving an overview of the square root sign. Positive values are then chosen to evaluate the basic quadratic and square root functions, the points are graphed, and the graphs are compared. Graphs are also created with an online...
Khan Academy
Khan Academy: Algebra: Addition and Subtraction of Polynomials
Video defines what a polynomial is, identifies some different types of polynomials, explains how to determine the degree of a polynomial, shows how to add and subtract polynomials, and shows how to write polynomial expressions to...
Khan Academy
Khan Academy: Algebra: Scientific Notation
Video shows examples of converting numbers from scientific notation to their numerical value. Also shows writing numerical values in scientific notation. [11:26]
Khan Academy
Khan Academy: Algebra: Addition of Rational Numbers
Video shows examples of adding fractions with like and unlike denominators. Includes a word problem example involving adding fractions. [7:40]
Khan Academy
Khan Academy: Algebra: Using the Quadratic Formula
Video shows how to use the quadratic formula to solve quadratic equations. The solutions to one example are verified by graphing the associated quadratic function. Includes link to additional practice problems. [16:32]
Khan Academy
Khan Academy: Algebra: Geometric Sequences (Introduction)
Video introduces geometric sequences explaining what they are and giving examples. Explains what the common ratio is and shows examples using it to write a geometric sequence. Gives example of word problem involving a geometric sequence...