## The Power of 37

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. …

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## From 21 to 500: Game & Math Salon

Here’s a fun, very simple classroom game you can play for multiplication. You may know the game 21, aka blackjack. In classrooms, I like to play with a deck that only includes numbers from 1 to 10. Twenty-one. Each player gets two cards (face up). They can “hit” to take another card, or “stay” to stick with what they have. Whoever …

## Games by Math for Love

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We’ve recently invented a game that surely already exists in some form already. But it’s been super fun to play, and we’ve been using it with kids and teachers at all grades. It’s kind of magic. We don’t have a scoring system for the game, and I don’t think it needs it in many cases, but if you have ideas …

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## Goat River Crossing

This is a post about owning your mathematical experience, problem-solving, and flexibility. It also involves our goats—yes, we have goats—and a story of what happened when we took them hiking this summer. What you need to know about our goats is that they hate to get wet (notice their bleats when they encounter the river in the video above). Still, …

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## One Minute Math Video: Adding 1000 numbers versus opening a bag of chips

Our first 1 minute math video. Pass it along if you know anyone who’d like it. Should we make more? Any topics you’d like to see?

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## A game to end all times tables drills: Damult Dice

Every kid needs to learn their times tables at some point, and this means practice. Unfortunately, practicing times tables can be unmotivated and boring for kids. We adults, rightly, ask, “How can we make it fun?”(Important note: times tables are not math. Math doesn’t need to be made fun; it already is fun. Memorizing your times tables is a rote …