# The Power of 37

November 30, 2015

Our new lesson plan library is up in beta form. We’re not sharing it widely yet, but it’s getting close. Our goal is to have a collection of great problems for K-6th grade, easily filterable by topic, grade, Common Core, and keyword. We know that many teachers would love an easy place to find high-quality, easy-to-use complex problems and games. We’re hoping that Math for Love can be such a place, where each question, game, or lesson plan is a pleasure to use in the classroom and a hit with the students, as well as being rigorous and dynamic.

To that end, we want your feedback! Try these lessons out in your classroom or with your kids. Let us know what works and what doesn’t.

We’ll plan to highlight lessons from the new library weekly (or from time to time). This week: The Power of 37.

This lesson uses a surprising multiplication pattern to motivate multiplication practice for 4th and 5th graders. It’s highly arithmetic, and fits right in with the major work of 4th and 5th grade. It begins with a mystery.

Is it just a coincidence that (7 + 7 + 7) x 37 = 777?

If not, why does 37 have this power?

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