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

If Eli Luberoff had his way, no student would need to buy handheld graphing calculators. For nearly a decade, the founder and CEO of Desmos has been building a free alternative that works on web ...

Corrected: An earlier version of this article included inaccurate phrasing regarding the findings from the National Assessment of Educational Progress. Data extracted from NAEP show the percentage of ...