MathWorld provides a huge mathematics encyclopedia detailing the concepts of geometry, algebra, calculus, discrete math, number theory, and other math topics--complete with formulas, diagrams, examples, and references for thorough...

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...

Use a simple formula to help you figure out the age of the mathematician Augustus de Morgan. When done, check your results against the solution.

[Free Registration/Login Required] This flipchart has a clear explanation of ways to use the midpoint of a line segment with algebra.

Who was Pythagoras and what is his theorem? Explore this concept and its relationship to the measurement of a right triangle in this test prep lesson plan. The instructional activity includes an interactive worksheet where students...

Demonstrates the steps involved in solving a general polynomial, including how to use the Rational Roots Test and synthetic division. Points out when using a graphing calculator can be very helpful.

Demonstrates the steps involved in factoring a general polynomial, including using the Rational Roots Test and synthetic division. Shows how to "cheat" with a graphing calculator.

A tutorial on quadratics presents topics including: factoring and solving quadratics, graphing quadratic functions, using completing the square and the quadratic formula to solve functions, the discriminant and conjugates. Plenty of...

This CoolMath resource reviews the ways to solve quadratic equations: factoring, finding square roots, and using the quadratic formula.

Provides examples of how quadratic equations can be used in real-world scenarios, and the different methods used to solve them.

Students will define density and use the density formula to determine the density, volume, and mass of various items using the correct units for each measurement.

n this task learners use different representations to analyze the relationship between two quantities and to solve a real world problem. The situation presented provides a good opportunity to make connections between the information...

Explore the effect of the combination of temperature and wind speed on human comfort. Use a formula to compute the Fahrenheit wind chill for a specific wind speed on a specific temperature.

In this instructional task students are given two inequalities, one as a formula and one in words, and a set of possible solutions. They have to decide which of the given numbers actually solve the inequalities. There are two solutions...

Picture a roll of toilet paper; assume that the paper in the roll is very tightly rolled. Assuming that the paper in the roll is very thin, find a relationship between the thickness of the paper, the inner and outer radii of the roll,...

Uses the movie "October Sky" as an introduction to the study of free fall motion functions. Acts a summation activity to a quadratic unit in Algebra. Solve quadratic equations by graphing, factoring, and the quadratic formula.

Given the center and radius of a circle, determine if a point is inside of the circle, on the circle, or outside of the circle. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

[Free Registration/Login Required] In this flipchart students use the visual and interactive features of Activstudio to solve various puzzles. Students apply their algebraic and number sense to solve problems using numbers and variables.

[Free Registration/Login Required] In this Flipchart students are posed with a seemingly simple problem: guessing the correct number of handshakes possible amongst a group of eight students. Participants then solve the problem visually...

[Free Registration/Login Required] In this Flipchart, students use logic and mathematical reasoning to visually solve problems using matchsticks. Students develop their sense of pattern recognition, and pattern disruption, and then apply...

Demonstrates how to use the formula for finding the differences of squares, and warns against trying to factor a sum of squares.

[Free Registration/Login Required] In this flipchart, students understand and apply concepts and procedures from algebraic sense. Students apply processes that use repeated addition. Students recognize, extend and create sequences...

An introduction to solving trigonometric equations by using the reciprocal, negative, Pythagorean, and cofunction identities. Includes several examples and exercises with solutions at the bottom of the page.

Use this algebra lesson to find out how annuities work and where the formula comes from.