Illuminations: Welcome to Illuminations

Explore our library of 108 online activities that help to make math come alive in the classroom or at home
View our collection of 607 lessons for preK-12 math educators
Learn about NCTM’s Principles and Standards for School Mathematics
Check out hundreds of exemplary online resources, as identified by an editorial panel
Highlighted Activity

Daily KenKen®
for

prek-8

KenKen is a logic puzzle that involves arithmetic. Similar to SuDoku, KenKen will exercise your mind as you fill in the blanks. Pick your poison — easy or hard, only addition or all four operations.

Solutions posted the following day… check back tomorrow!

 

Highlighted Lesson
Game On!
PreK-12

Calculation NationWhen's the last time you played a math strategy game at Calculation Nation®?

Race to conceptual understanding of the distance-rate-time formula with Dirt Dash! Algebra is a day at the beach with Ker-Splash!

Check out all 12 games!

 

Mobile Apps for PreK-2!

Okta's RescueWhat's that you say? You already love the Concentration game on Illuminations? Well, now it's available as a mobile app (iOS, Android). Now you can play on your phone, your iPad, or your Andriod tablet, anywhere you want!

But you'd rather have an app that teaches counting, subitizing, and more? Yeah, we've got an app for that, too. Okta's Rescue is also available for mobile devices (iOS, Android).

 

Video: Serving Up Classroom Fun!

Laurie PenneyLaurie Penney, a teacher at Willard School in Concord, Mass., was a participant at the 2011 Illuminations Summer Institute. As part of the Institute, she recently helped to develop Illuminations’s newest online activity, Quotient Café.

Be the first to know about new Illuminations resources, news and events by subscribing to our monthly e-newsletter Bright Ideas. Subscribe today!

STEM & Mobile Devices

Thinkfinity Logo

March 13, 5 PM EST webinar on locating high-quality STEM resources for all grades. Explore free lesson plans, interactives, and activities as well as community support at Thinkfinity.org. Learn to make the most of BYOD, tablets and smartphones. Webinar by Barbara DeSantis. Learn more.

 


National Council of Teachers of Mathematics Thinkfinity
© 2000 National Council of Teachers of Mathematics
Use of this Web site constitutes acceptance of the Terms of Use