3 Act Tasks

Problem solving lessons that
spark a conversation

Clothesline Math

Interactive number
lines for K-6

Number Talk Images

Finding math in every
day places

Now Available For Purchase - Kickstart Number Line Activities

By Kristen Acosta

Making sense of math one card at a time

Upcoming Conference

From Memorization to Thinking Math Summit, virtual, CA ( August 10 - August 12 )

Latest Blog Posts

The most evil word is…..

There are certain memories and experiences that shape the course of our paths. Some memories can warm your heart, while others can cause pain and hurt. There’s one particular memory that gave me inspiration to go beyond my comfort zone. This memory fueled my drive to be the best that I can be. I know it sounds corny, but let ...

Mathematics for Human Flourishing

It’s summer time and during my summer months of slumber, I love to catch up on reading. “Mathematics for Human Flourishing” has been on my bookshelf for a big. Thanks to a conversation with my buddy, Pam Brett (blueglassesmath.com).…I was intrigued to read it. I have listened to Francis Su on a podcast and wrote a blog post about ...

Top 10 Manipulatives/Materials for a Math Classroom

My mantra since I started teaching in 1999 was to make math an active subject. I wanted math standards to jump off the page. It was my goals to help students understand what a mathematized world we live in. I also realized that all students don’t learn the same way. In planning units of study, I make sure that students ...