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...

How much sugar is in one bottle? Pupils use double number line diagrams to determine the amount of sugar in a 1L bottle of cola. The teacher leads a discussion on ways that double number lines can be of assistance in solving a problem...

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...

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...

Ratios are all about relationships and this video shows two different ways to find those patterns. The prior video in the six-part video series sets up the ratio with addition, and this video focuses on the multiplicative reasoning. Show...

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...

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,...

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...

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...