Why I love this problem: It's open to so much creative play (especially if you have pentomino tiles). Students can try their luck at taking a tile and scaling it up and then trying to cover it with the original size tiles. You can give students some grid paper and ask them to make scale …
Math Treat
Making Stars
Why I love this problem: First, you can easily make this hands-on by asking students to stand in a circle, choosing a "skip number", and then passing a ball around to every nth person. Students can see for themselves exactly who touches the ball and who gets left out. Second, once you start …
Two Coins
Why I love this problem: It’s accessible to anyone who can add, but can engage students of ALL ages. Plus, the problem starts with an open space where you can just explore BEFORE we ask an interesting question -- what numbers can you make with an unlimited supply of 3 and 7 coins? This gives all …