All About Ratios

What do fractions and ratios have in common? What is unique about fractions and what is unique about ratios? Lead a discussion and model some examples. Then, pose some questions and have your mathematicians set up the ratios. Check for...

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...

Upper elementary and middle school pupils fill out a chart creating six equivalent fractions and then compare them to six different objects and/or shapes. They group together 16 various terms related to ratios and proportions. Pupils...

Enlargements and reductions are all about scale. The lesson introduces scale drawing to the class. Pupils determine whether the drawing is a reduction or an enlargement and the constant of proportionality between the original and the...

At this rate, you'll know all about ratios in no time. Scholars view a short video that discusses advanced concepts regarding ratios and rates. They first determine the speed of a subway from a graph, and then find unit rates given...

Demonstrating the concept of ratios with several simple examples (animals, fruit, girls and boys in class), Sal guides viewers through the process of finding and simplifying ratios. Even those who have a hard time grasping the concept of...

The Common Core is all about ratios and proportions, and this video uses that method to calculate percents. This is the second video in a series that organizes information from an ice cream poll into a proportion to find how many vanilla...

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,...

Take your class on a field trip to Fractalland where they'll learn all about number and shape patterns. Based on Disney's movie Alice in Wonderland, this resource takes young mathematicians on an adventure as they explore patterns in...