Just like the Montgomery Bus Boycott, the first sit-in at a Woolworth's lunch counter was the beginning of a nonviolent movement to challenge "white only" laws. Read about how the sit-in movement spread across the South. See how...

Can there be a connection between map making and math? Explore the mathematics of cartography in this resource that integrates web-based instruction, mathematical problem solving, geometry, history, and art. Interesting information and...

Rather than dividing a circle into some number of segments (like 360 degrees), mathematicians often prefer to measure angles using the circumference of a unit circle - a circle with radius 1. This way of measuring angles is called...

Read about the two civil rights groups that organized nonviolent protests during the 1950s and 1960s.

An introduction to viewing the complex plane in terms of polar coordinates. Assumes knowledge of the conversion formulas. Includes several examples and pictures.

Math World offers the transformational matrix that allows us to rotate a two dimensional coordinate which in turn rotates the image. The page also offers the transformational matrix for rotation in three dimensions.

This book was written and illustrated by sixth grade students at High Tech High Middle School in San Diego, California. As part of a three-month study of Ancient Egypt, students researched topics to feature in this children's alphabet...

[Free Registration/Login may be required to access all resource tools.] This concept introduces the distance formula and uses it to prove that line segments are congruent. Students examine guided notes, review guided practice, watch...

This lesson offers suggestions to help you fix short, choppy sentences, combine sentences with the same subject, and revise sentences that sound the same. L.11-12.3 Language Functions/Style

Given a complex number of the form a+bi, find its angle. 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.] Here you will learn how to convert complex numbers from rectangular form to polar form. You will also explore the graphs of complex numbers on a polar graph.

A complete reference guide to diagonals of a square. It provides definitions, examples, and interactive activities that enhance further explanation. Includes links to related topics.

In this mini-lesson, we will learn about transformations of functions, transformations of exponential functions, and transformations of quadratic functions. Check out the interactive simulations to know more about the lesson and try your...

The student learns how to create number patterns involving addition and subtraction.

Learn about vertical lines with this handy reference guide. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.

Use the interactive transformation tool to perform translations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Find specific elements (also called entries) of given matrices. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.