The ratio or proportion between two numbers is how many times one is bigger than the other. An introduction to using ratio. Entry 3 - Proportion problems Summary of some everyday practical ...

With the PhET simulation Ratio and Proportion, learners can explore finding and maintaining through movement specific challenge ratios, such as 1:2. Learners can make use of various sensorimotor ...

Knowing how to find and use percentages is an important skill. Direct and inverse proportion - AQA Proportion is used to show how quantities and amounts are related to each other. The amount that ...

Building on the design of the PhET sim Ratio and Proportion, we created four sensory extension devices to investigate and broaden the ways to explore challenge ratios. Each sensory extension device ...