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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 …

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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 …

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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 …

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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 …

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I’m really excited about this Pentasquares puzzle from Serhiy Grabarchuk. Pentasquares are five square shapes which fit inside a 3 x 3 dimension. The goal of this puzzle is to put all six pentasquares inside a 6 x 6 square. You can rotate the pentasquares, but you may not overlap them or flip them over. …

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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 …

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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 …

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