Here's what it looks like. Actually, I'm calling this one Rectangle 0.
Here's Rectangle 1:
Here's Rectangle 2:
My kid saw me making Rectangle 2. The next day she said, "Mama, I'm going to make a square like you did. Oh, wait...this is harder than I thought [counting the cubes] 1, 2, 3, 4, 5...1, 2, 3, 4, 5, 6...[repeating the count just to make sure]. It's not a square. It's actually a rectangle."
The color patterns in this thing are fascinating too. For example, here's a 3x6 rectangle.
My kid spent a happy day experimenting with different configurations, like these:
We also made different kinds of zig zags:
I love how she off set this!
*Like any other product I talk about on this blog, I discovered this toy on my own am sharing our experience in the name of math fun and discovery. I never review products for compensation of any kind.