An interactive simulation that teaches about ratios, proportional reasoning, and unit rate by making predictions and testing proportions while designing a necklace, throwing balloons filled with paint, playing billiards, or shopping for...

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

Make Texas chili as you learn about ratios in this interactive lesson. Students get immediate feedback on their responses and teachers have access to online assessment.

Did you know that chefs must know how to use ratios in order to prepare meals? Learn the value of understanding how to write ratios, ratio proportionality, and ratios in lowest terms in this interactive lesson. Based on real world...

A comprehensive lesson plan on algebraic thinking where young scholars create and identify patterns using proportional reasoning. Research based, this lesson plan includes technology connections, items for discussion, and extension...

Demonstrate the ability to apply the use of decimals, fractions, ratios and proportions to situations based upon given information about planets in the solar system.

This example provides a clear explanation of how to compare figures to see if they are similar and the formula to determine if the ratios are equal. Interactive practice activities are provided.

In this instructional activity, Roald Dahl's book The Witches is used as a mentor text. Students will attempt to save themselves and the other children. Students will analyze real population statistics from world-wide and details from...

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...

This short exercise gives the student a ratio in reduced terms, and then gives the students a replacement value for one part of the ratio. The student is then to input the other part of the replacement ratio so as to keep the two ratios...

This page explores how ratios can be written as fractions. The site also discusses proportions and reducing ratios with problems and examples.

[Free Registration/Login Required] This flipchart focuses on reading a customary ruler to the eighth of an inch (introduction to sixteenth of an inch). Conversion in the customary system is introduced using ratios and proportions.

This resource presents an interesting challenge for the serious mathematician with strong reasoning skills. Explore proportional reasoning, probabilities, fractions, and ratios in this challenge to figure out if you always get six hours...

In this video segment from Cyberchase, the CyberSquad and Digit construct a physical profile of the person who kidnapped Choocroca, a giant cybercrocodile. [2:49]