[Free Registration/Login may be required to access all resource tools.] This lesson covers how to find a pattern and write a recursive rule. Students examine guided notes, review guided practice and attempt practice problems.

Provides examples and a video lesson that illustrate the Pythagorean Theorem which provides us with the relationship between the sides in a right triangle. [4:41]

Explanation and examples of using a formula to determine the nth term in a sequence.

Learn all about the Pythagorean Theorem by viewing examples and a video lesson.

Solve word problems about real world relationships that are given in formulas. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Match the formula of a piecewise function to its graph. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice evaluating the inverse function of a function that is given either as a formula, or as a graph, or as a table of values. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Given a verbal description of a real-world relationship, determine the sequence that models that relationship. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Find the input that corresponds to a given function output, using the function's formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

Find the midpoint between any two points using this java applet. The applet allows the user to pick any two points, see the segment and how the midpoint is found algebraically and graphically.

[Free Registration/Login may be required to access all resource tools.] Learn to identify the slope and y-intercept of a linear equation.

This site displays formulas and examples, pertaining to slope, for parallel and perpendicular lines.

This is an excellent site on parabolas. Examples and formulas are given.

A dozen topology topics are listed here for both the teacher's and the student's use. Knot Theory, Bundles, and Topology Structures are just some of the areas which are explored in depth. Detailed explanations and necessary sketches and...

An interactive solver for quadratic equations shows solutions using several methods, including graphing and the quadratic formula.

Find a quick, concise explanation of the distance formula. An example is given and clearly explained.

Find a quick, concise explanation of the midpoint formula. An example is given and clearly explained for the midpoint formula in one, two, and three dimensions.

Solve quadratic equations using the quadratic formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

[Free Registration/Login may be required to access all resource tools.] Given a quadratic equation, find its discriminant and use the result to determine the nature of the solutions.

[Free Registration/Login may be required to access all resource tools.] Learn how to use the discriminant to solve problems and determine the number of solutions to quadratic equations.

[Free Registration/Login may be required to access all resource tools.] Learn how to use the discriminant to solve problems and determine the number of solutions to quadratic equations.

[Free Registration/Login may be required to access all resource tools.] Determine the number of solutions to a quadratic equation and find such solutions by graphing.

[Free Registration/Login may be required to access all resource tools.] Factor perfect square trinomials and the difference of two squares and solve quadratic equations by factoring.

Interactive lessons are provided for many topics in algebra, including: laws of algebra, powers, roots and radicals, algebraic expressions, equations, and more. Use the links to navigate the tutorial and learn more focused concepts. The...