## 20 Days of Number Sense & Rich Math Talk (K-12)

20 Days of Number Sense & Rich Math Talk – for all grades from K-12. That is the goal of this series. Entirely new, exclusive content fills this post in a ready-to-use format that will allow you to deeply explore 4 rich math routines. By downloading each day, you can have a clear pathway to…

Read More## Esti-Mysteries: Estimation Meets Math Mysteries

Introducing Esti-Mysteries! Each image invites students to wonder what number is represented by the image. As you click through the each Esti-Mystery, clues will appear that will allow the students to use math concepts to narrow the set of possibilities to a small set of numbers. In the end, the students will need to call…

Read More## 100 Subitizing Slides & 10 Challenge Patterns

With a click, a pattern of dots appears on your screen. Instantly your students tell how many. They don’t count the dots. Instead they simply know the total at a glance. Subitizing – when a person looks at a small set of objects and instantly detects the total without counting. It’s a powerful process and…

Read More## The Estimation Clipboard

The Estimation Clipboard is a set of 40 lessons that each include 4 highly similar images. Each image provides an invitation to estimate. Then as new images are introduced, the students’ context and intrigue will grow – and so will their excitement. Jennifer Barker recently wrote about her experience with The Estimation Clipboard in her…

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