I was super excited to discover a mathematical variation of tic-tac-toe. Instead of playing with Xs and Os, Numerical Tic Tac Toe is a game of evens vs odds. I printed the even and odd numbers on different colors of paper to make it super clear which numbers belong to each person. You might have …

# Google Slides

I’ve been a fan of this factoring puzzle for factoring quadratic trinomials since I worked through it at a Common Core workshop I attended (OGAP) in the summer of 2013. Over the last couple of days, I have been going back through these resources that I originally blogged about and giving each resource its own …

Today I’m sharing the Sum to Twenty-One Puzzle with you. Previously, I have shared similar puzzles called Sum to Twenty and Sum to Thirty. These puzzles are the creation of Marcy Cook. They were shared in THINK ABOUT IT! Mathematics Problems of the Day which was published by Creative Publications in 1982. The book is …

The 9-10-11-12 Challenge is actually four puzzles in one. Can you arrange the numbers 1 through 6 in the spaces of the triangular shape below so that each side sums to 9? Repeat the challenge for sums of 10, 11, and 12. I learned of this challenge from a collection of brainteasers that is no …

Everyone knows how to play tic-tac-toe. But can you solve the tic tac toe challenge puzzle? This fun brain teaser is simple to explain, but it can be hard to solve!

Today I’m sharing a new puzzle with you called the 8 sticks puzzle. Yesterday, I bemoaned the loss of my classroom puzzle corner. I’ve been trying to come up with some ways to keep incorporating puzzles in my classroom in a pandemic-friendly manner. My favorite puzzles are the ones with pieces that students can manipulate. …

I want to share a factoring quadratics practice activity I created for my Algebra 2 students. In the Oklahoma math standards, students are first exposed to factoring quadratics in Algebra 1. However, they are only exposed to factoring quadratics where the leading coefficient is 1. These are called monic quadratics. Thus, my Algebra 2 students …

It’s a lazy Saturday morning that is turning out to be lazier than I had initially planned since I’m currently stuck on the couch with a sleeping baby on top of me. That means it’s the perfect time to share another puzzle that my students tackled recently on our magnetic puzzle wall (AKA dry erase …

Master the art of the squaring off puzzle! Rotate and arrange given rectangular pieces to create a perfect square, testing your problem-solving skills. Thanksgiving Break is here, and I am oh so grateful for these few days off. This year has felt like one long learning curve as I figure out what life looks like …

I’m excited to share with you the Big Magic Puzzle. I love magic square puzzles, but I’ve never done much more with them in my class then give out the occasional magic square puzzle worksheet. So, when I ran across a different-than-normal magic square puzzle in The Ultimate Clever Puzzle Book, I knew I had …