Teachers can use these tools to promote discussions and help students move from concrete to abstract understanding of concepts.

This project is an open-source games hub where each mini-game is stored in its own folder. Every game runs directly in the browser and is written in pure HTML, CSS, and JS — no frameworks, no build ...

There are five children under 10 years old. Their ages are listed as whole numbers, such as 0, 1, 2, etcetera. None have a decimal age such as 2.5; their ages increase by 1 on their birthday. The mean ...