With the PhET simulation Ratio and Proportion, learners can explore finding and ... descriptive terms, etc.) in grounding their learning and accomplishing the bimanual coordination task.

Male, brown hair, white shirt: Our ratio of computers to support engineers is about 150. Each engineer can look after 150 computers and if we bring on a customer with 300 users, that tells us 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 ...