Concepts in Trigonometry are explained and illustrated here by a member of the math department at Borough of Manhattan Community College.

This interactive website allows students to practice their map skills including scale factors on a map.

This tool allows you to create worksheets of word problems involving ratio and proportion.

A seventh-grade student is having trouble understanding ratios, fractions, and simplest form. Dr. Math to the rescue! Real-world, easy to grasp examples.

Dr. Math helps a student discover the meaning of the mean proportional of two numbers. Detailed explanation with examples.

Math variety of concepts, this colorful website is sure to give your students the chance show what they know. Concepts covered include rounding, division with decimals, order of operations, ratio, percent, multiplication, and division of...

The discussion examines direct variation. Students learn about the math concept through definitions and sample exercises.

"Connecting learning to the real world" is the goal of the Futures Channel. Through the use of short videos, teachers can integrate real-world examples of how math and science are used in everyday life. Complete teaching guidelines...

Students learn how to solve proportions. The mathematics resource consists of examples and practice problems with answers.

Provides examples and a video lesson that illustrates how to solve percent problems.

Students learn about ratios and percentages in the tutorial. The mathematics resource consists of examples and practice problems with answers.

[Free Registration/Login may be required to access all resource tools.] Recognize unit scale as a ratio between units of measure of scale dimension to actual dimension.

Bianca visits a bike shop and learns how bicycle gears work in this Cyberchase video segment. [3:26]

As a coach for a long distance cyclist, can you come up with a race plan to help him win his ride from Lands End to John o' Groats? This activity is a more challenging follow-on from Nutrition and Cycling and is aimed at secondary...

Practice computing rates associated with ratios of fractions or decimals. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Word problems allow you to see the real world uses of math! This tutorial shows you how to take a rate and convert it to a unit rate. Then, you can use that unit rate to calculate your answer. Watch this tutorial to learn all about it!

This is a personal site from Jim Loy that describes the golden rectangle and the golden ratio. Includes several diagrams and pictures as well as formulas. A good background in math is helpful.

In this video, life-size replicas help demonstrate one-dimensional scaling and the ratio relationship between two real-world quantities. The accompanying classroom activity helps students understand how ratios and proportions can help...

This video features the Louisville Slugger Museum and Factory, home to the world's largest bat. Students see the role that measurement and engineering play in making bats to professional players' specifications and are asked to consider...

This site contains a lesson plan for high school age learners. The objective is to discover the factor of proportionality in similar polygons and to relate this factor to the perimeters and areas of similar polygons.

Practice equivalent expressions with percent problems.

Look at an interesting application of ratios that demonstrates the amazing patterns that emerge when we examine mathematics. The Fibonacci numbers are found in art, music, and nature.

This math game will help students understand the connection between fractions and decimals. Students will use dice, a recording sheet, and their number sense as they find equivalent fractions from decimals. During the other part of the...

This is a beginning lesson on the concept of probability. Through a series of informal comparisons, the student will explore the chances of various outcomes of an event. The student will use vocabulary associated with probability.This...