Ratios and Proportions Teacher Resources

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...

In this lesson, you will learn to calculate the part when you know the percent and the total by using a double number line. [4:29]

In this lesson, you will learn to solve for missing values in a rate problem by using multiplicative reasoning. [6:38]

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

In this lesson, 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 the story to...

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...

In this lesson, you will learn how to apply scale maps and scale models by using unit rates. [4:37]

[Free Registration/Login Required] In this flipchart, students apply their understanding of ratio, percent, and direct proportion in various situations. Students solve problems involving ratio and proportion with similar figures and with...

[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 lesson defines the term ratio. Students can look at a two-page presentation of notes and practice problems.

This lesson will introduce the meaning of weighted average, and demonstrate how to solve for the weighted average of a data set. Students can look at a presentation and then take an online quiz.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to set up and solve proportions.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students what a ratio is and how to use one. Students examine guided notes, review guided practice, watch instructional videos and attempt...

[Free Registration/Login may be required to access all resource tools.] In this lesson students find and reduce ratios. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.

[Free Registration/Login may be required to access all resource tools.] Apply proportion properties.

[Free Registration/Login may be required to access all resource tools.] Understand and write equivalent fractions.