One of the yearly activities I look forward to at my school is our annual Pinwheels for Peace celebration. Pinwheels for Peace is a school-wide, cross-curricular project that occurs every September. At my school, the project is headed up by by my super-talented, award-winning art teacher neighbor, Shelley Self. September 21st is International Day of …

# Desmos

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 …

Here’s a third hidden equation puzzle from Erich Friedman. Circle one symbol in each column so that a true equation results reading from left to right. I love to use these hidden equation puzzles with dry erase pockets in my classroom. If you don’t have a classroom set of dry erase pockets, you could also …

I’m super excited about using this ink stain matching activity as a first day of school activity for next year. It’s a great conversation starter, and I can see it being used in many different types of classrooms and subjects as a beginning of year team-building activity. If you are still in school and looking …

I ran across this X Marks the Spot Puzzle several years ago. The goal of the puzzle is to place Xs in the drawing so that a certain set of requirements is met. After typing up this puzzle with several other brainteasers, I promptly misplaced the computer file before ever using any of the puzzles …

I ran across this Pyramid Solitaire Puzzle in The Diagram Group’s Little Giant Encyclopedia of Puzzles. The goal is to pace the 16 markers in a pyramid pattern. Then, jump the markers horizontally and vertically so that a single marker remains in the center of the board. Each jump moves a marker over any adjacent …

In this Make Six Puzzle, you are given eight equations. You must insert mathematical symbols (no digits) to make each equation equal six. If you are wondering what mathematical symbols you are allowed to use, that is up to you!

I really like this order of operations activity that I am naming “Missing Parentheses.” I found it in the textbook Intermediate Algebra for College Students by Karl J. Smith and Patrick J. Boyle (free to borrow from the Internet Archive’s Online Lending Library). Yesterday, I shared a lovely set of 10 order of operations practice …

I am really liking these quadratic area puzzles from Chritsopher (Bow Tie Teacher on twitter) that are posted for free on TES. They are inspired by Naoki Inaba‘s Area Maze puzzles with a quadratic spin on things. For next year, I think I would like to do some sort of activity at the beginning of …

It’s been almost two years since I last shared a hidden equation puzzle with you. These hidden equation puzzles are the product of Erich Friedman, a math professor and prolific puzzle creator. You can read more about Hidden Equation Puzzle 1 here. I was introduced to these hidden equation puzzles through Puzzle Box, Volume 2. …