About MathLabs

MathLabs is a free library of visual, interactive math tools (“Labs”) for K–12 classrooms. It is made and run by Dan Shuster, a math teacher in California.

Who makes it

Dan Shuster taught high school math and computer science for 30 years. He then worked as a Teacher on Special Assignment (TOSA), supporting K–12 teachers with educational technology and mathematics. He now works at a charter school as an instructional coach and math specialist, and is grateful he still gets to teach one class of 8th grade math!

Dan designs each Lab around how students actually learn: they explore an idea with their teacher, notice patterns, then practice with feedback that explains common mistakes. The Labs are built with the help of AI coding tools, and Dan tests and refines every Lab before it goes on the site.

How teachers use it

Whole-class demos on a projector or interactive board
Warm-ups, stations, and independent practice on student devices
Works in any modern browser on Chromebooks, laptops, tablets, and phones

Our promises

Always free
No ads
No accounts, logins, or sign-ups, for students or teachers
No student data collected. Read the privacy statement

Contact

Questions, suggestions for improvement, ideas for a new Lab, or something not working? Email Dan:

[email protected]

Write in Gmail Open email app

For school IT staff

MathLabs is a static educational website served over HTTPS. To allow it through a web filter, add these domains:

mathlabs.app and www.mathlabs.app

The only outside script is Cloudflare’s cookie-free page-view counter (static.cloudflareinsights.com); the Labs work normally if it is blocked. Suggested category: Education. The site has no logins, chat, user-generated content, ads, or tracking cookies. Questions? Email [email protected] (contact options).