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For students to gain foundations for place value, the Common Core Content Standards call for kindergartners to compose and decompose numbers from 11 to 19 into ten ones and some further ones, using objects or...

I love it when I break an egg and a double yolk appears. It’s like nature’s magic at work. That’s what happened the other day when I was making breakfast. After that little surprise, I...

Making sense of data in our complex world is becoming an essential part of life and being able to analyze and understand what data is telling us is crucial to being an informed citizen. Data...

Imagine this scenario: You’re sitting in a restaurant finishing dinner with friends, and the waitperson hands you the check. It’s your job to figure the tip on the $238.00 total. You reach for your tip...

When learning about division in fourth grade, I remember our teacher marching us through an explanation of remainders. It went something like, “If the divisor doesn’t go into the dividend evenly, you’ll have something leftover...

In our last post, we talked about how culturally responsive math educators pose contexts that serve as either windows or mirrors for students. “A mirror,” Emily Style says, “is a story that reflects your own...

There’s an episode in the first season of Ted Lasso in which Rebecca’s ex-husband (Rebecca is the soccer team’s owner) challenges Ted to a game of darts in a local bar. The ex-husband, blind by...

The Olympics in Tokyo this summer involved a veritable goldmine of mathematics. Athletes competed to find out how fast they could cycle, swim, run, row, sail. How close they could get to a target. How...

Would you spend your summer vacation doing math? For some, this sounds like a crazy question. But not to the kids from Alpine, California who spent a week this summer at Math Mania. Why was...

When we assess our students’ math work, it seems like it’s part of our nature to want to come to the rescue and focus our attention on how we can help them fix their mistakes,...