Ratios

This turn-key unit on ratios and unit rates walks through a 30-lesson unit on teaching proportional reasoning, with each lesson broken into detailed teaching notes and time allotments for all parts. An unbelievable resource when taken...

How many boys are in the class? Here is an introductory exercise describing ratios. The commentary shows different ways learners can approach the problem, using a tape diagram of boys to girls and using a table. The activity includes...

Here you will find an excellent presentation for introducing or reviewing ratio and proportion. Pupils are introduced to some terms associated with ratios and proportions. Next, they are given examples to work with in order to gain solid...

Recipes are a great way to connect ratios with real life, because sometimes we just need a bigger batch. Show your middle schoolers how to set up a ratio with the recipe for fruit punch and organize it into a table with this first video...

Converting units are ratios in disguise and can be easy solve. Although this video is the last in a series about different methods to solve ratio problems, it does not have to be used in conjunction with this series. It introduces the...

The series of videos introduces five ways to solve ratio problems, but how do you choose which one to use? In the video, show class members that they can pick any strategy to solve their problem to see how each option gives the same...

Organization is the best way to make sure that ratios are set up correctly to be proportional. This video reviews how to solve ratio problems with addition and multiplication, shown in more detail in the prior two videos of this series,...

There are many ways to solve ratio problems, and this lesson reviews the three methods taught by the prior videos before introducing a tape diagram. Have your learners practice solving with addition, multiplication, and double number...

Does your class realize that the ratio of the body measurements may be golden? After studying how the Golden Ratio is involved in the body, architecture, and nature, pupils create a poster to highlight the ratio. They show what they know...

Investigate equivalence of ratios with an experimental approach. Learners test the idea of equivalent ratios by collecting samples of beans with a specified ratio of marked and unmarked. They then compare their experimental results with...