Bumpy Wheel (multiplication)

Bumpy Wheel (multiplication)

Bumpy Wheel (MathPickle 2022) Bumpy Wheel is a two-player game. Setup: Put an even number of dots in a circle. Copy this pattern so both players have it.  Rules: 1) On your opponent’s dots: Secretly place consecutive integers starting at zero. They can...
Kitchen Tile War (counting, comparing)

Kitchen Tile War (counting, comparing)

Kitchen Tile War (MathPickle 2022) Grade 2+ tiling puzzle. Teaches students organization and presentation of their ideas. Some grade 2 students will have dexterity issues in trying to draw these tiles, but the mathematics of comparing the sizes works well for them....
Three Color Triangle Puzzles (logic, algorithm)

Three Color Triangle Puzzles (logic, algorithm)

Three Color Triangle Puzzles (MathPickle 2021) This logic puzzle is inspired by the brilliant Mathologer video below. The tricks presented above are proved below.  Playing with these puzzles is good for upper elementary, but younger kids can get a lot of value from...
Rainbow Sudoku (logic puzzle)

Rainbow Sudoku (logic puzzle)

Rainbow Sudoku (MathPickle 2021 – Inspired by Amar Sodhi) In regular sudoku and pentomino sudoku numbers are given as clues. Each region needs exactly one copy of each number. That’s true whether the regions are 3×3 squares or pentominoes. In Rainbow...