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....
ConVexed (clockwise, convexity, word puzzle)

ConVexed (clockwise, convexity, word puzzle)

ConVexed (MathPickle 2021) I’m not used to designing word puzzles, but this one is cute and allows your class to discuss terms like “clockwise”, “counter-clockwise” as well as getting creative and designing your own puzzles. Here is a pdf...
Colouring Ukraine (place value)

Colouring Ukraine (place value)

Coloring Ukraine (MathPickle 2022) This Feb 2022 activity is rooted in sad world events, but it simultaneously celebrates the tradition of beautiful map colouring puzzles.  Here is a map to colour (you’ll need to choose “File” then “Make a...
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...
Rooting for NASA (Cartesian, Pythagoras, Algorithm)

Rooting for NASA (Cartesian, Pythagoras, Algorithm)

Rooting for NASA (MathPickle, 2020) ReStudents can use Pythagoras to find all possible lengths of line segments on a grid. But what can you do with these line segments… Here are some ideas. They’re really just universes to explore. They look beautiful and...