Complete this interactive activity to understand how to compare lengths and heights. Then put your knowledge to the test. When you are comparing lengths, you are describing how long or short an object ...

Give children plenty of opportunities to measure and compare quantities, and develop the vocabulary to describe what they are doing, with more activity ideas in our series by Sheila Ebbutt and Carole ...

Before you submit an error, please consult our Video Help page. Math Mights is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, ...