Join Mrs. McCartney for a Mystery Math Mistake, then learn to combine coins in different w Join Mrs. McCartney for a Mystery Math Mistake - T-Pops needs your help! We'll learn about coins and their ...

Tax day came and went. While finding an elementary school kid who knows how to fill out 1040 forms is pretty rare, they should have a deeper understanding of the mathematics behind currency. These ...

Thirty €1 coins are arranged in a circle on a table. Ten of these coins are fake and a little lighter than the 20 real coins. You don’t know where in the circle the fake coins are, but you have been ...

Welcome to Teaching in Room 9, the area's largest classroom. I'm Mrs. Forth from the Rockwood School District. We're gonna have a lot of fun this week talking about fluency. That's right, we're really ...

You like math problems, right? And now’s as good a time as any to really sit down and ponder a good one. Because hey, maybe you’ve already finished Netflix, and that ten-hour train video stopped ...

In 2007 Alexander Shapovalov suggested an unusual coin-weighing problem for the sixth international Kolmogorov math tournament [5]. A judge is presented with 80 coins that all look the same, knowing ...