A ratio is a comparison of two numbers. Place a 5-unit rod and a 6-unit rod. The length of the 5-unit long rod to the length of the 6-unit long rod can be written as the ratio 5:6. Next double the number of rods to create the ratio 10:12. A proportion is an equation that shows that two ratios are equal. The ratios 5:6 and 10:12 form a proportion because their ratios are equivalent.
Ratios and Proportions using the Brainingcamp Cuisenaire® Rods virtual manipulative.
Brainingcamp virtual manipulatives can be used anywhere with no setup, cleanup, or lost parts. They are highly effective at engaging today’s digital learners and helping them bringing abstract math concepts to life.
Brainingcamp produces virtual manipulatives for iPads, Chromebooks, PCs, and Macs.