Dig Deeper

Offers research-based articles, lesson ideas, and professional development resources focused on number sense and operations.


A website with prompts and activities that encourage mathematical conversations at home or in the classroom to boost number sense.


An article centered around building number sense


Free, engaging tasks and research summaries designed to build number sense and conceptual understanding


A digital manipulative tool that supports visualizing number relationships and helps build number sense.

Written artifact on how to improve mathematics instruction for Kindergarten