## The Red Box Challenge

Here is another hundreds chart that I created in PowerPoint. This is the Light Switch Hundreds Chart. Can you explain why it arrives at the final set of numbers? Try to think outside of the “box.” You’ll understand what I mean in just a moment… Update: This challenge has been solved one time now.…

Read More## The Animated Multiplication Table

I made multiplication table using PowerPoint and went on to discover some very interesting relationships within the table. You will see several here. Click here to download the table. (After downloading, your first step will be to click the multiplication symbol to clear the table.) Other posts that may interest you: The Maze Hundreds Chart…

Read More## Letting Noticing Lead to Wondering

This post is simply my moving squares around using PowerPoint and letting it lead me to wonder about mathematical concepts. You should watch it and see if it makes you wonder, too.

Read More## Why We Must Wrestle With Content

I was awake at 5:30 this morning. Maybe you were, too. For me, it was because of a math lesson that was coming up in a few hours: subtracting negative integers from negative integers. I wasn’t satisfied. In fact, I was troubled. It was bothering me so much that it had awoken me in the…

Read More## The Hundreds Chart Video Tweet: My Learning Risk

I’m on a learning mission. I am hungry to learn, and I need your help. Truthfully, we probably all need each other to fuel one another’s passion for learning. When we connect, we ignite. So, I’m taking a risk. I’m trying something new. I’m stretching the boundary of what I know to an uncomfortable place where…

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