Stirring Paint (Cartesian, logic, vector)

Stirring Paint (Cartesian, logic, vector)

Stirring Paint (MathPickle, 2020) Above is a solution to a stirring paint puzzle. Can you guess the rules? #1 When the puzzle is solved, each colour forms exactly one loop. Example: if you start with the blue in the upper left, you move one space to a blue arrow...
Roll Reversal (counting, addition, manipulatives)

Roll Reversal (counting, addition, manipulatives)

Can you figure out the rules for Roll Reversal by just looking at this sample? We’ll explain the rules on the next few pages, but sometimes it’s fun to get your students to flex their inductive problem-solving muscles! We are going to use Cuisenaire rods....
Ariadne’s String Game (Pythagoras or ruler use)

Ariadne’s String Game (Pythagoras or ruler use)

Ariadne’s String Game (MathPickle, 2025) Thank you to Jia Ming for creating this wonderful online version! If you are playing on paper, elementary students are going to learn how to use a ruler and junior high students are about to make Pythagoras their best...
Genetic Labyrinth (combinatorics, logic)

Genetic Labyrinth (combinatorics, logic)

Genetic Labyrinth (MathPickle, 2021) Genetic labyrinth is best used as an activity when learning what “7 choose 3” means in junior high or high school. Students should try to construct a puzzle after they solve one. What is the maximum number of steps...
Line Up (patterns, logic)

Line Up (patterns, logic)

Line Up (MathPickle, 2022) Lining Up is a puzzle that playfully explores partitions and proximity. If you want to see it played with kids go here.  The key to teaching the puzzle well is to look for symmetry and patterns. After you play it in a line – try it...