Seemed like a pretty interesting problem to have my son try out, and even though it was 10 minutes until bedtime I asked him to give it a shot. It turned out to be a great discussion.

A few things I like about the problem:

(1) There are multiple ways to solve it,

(2) Kids can wonder whether or not the shape is a square and also find a way to answer that question, and

(3) Drawing a larger 5×5 square around the picture could lead to a nice discussion
about the Pythagorean theorem

There’s probably many more things to talk about that I’ve overlooked, too.

In any case, we’ve spent the last 4 years playing around with neat problems – many of which we’ve found online (and on Twitter). One of the goals of sharing our projects and videos has been to show kids that math can be both fun and interesting. Another has been to show that working through math problems isn’t always a straight line from start to finish.

Hopefully the ideas my son shares in his solutions illustrate both of these ideas. How lucky to find such an awesome problem for our 3000th video 🙂

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