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...
Diversity City (division, average, geometry)

Diversity City (division, average, geometry)

Diversity City (MathPickle, 2022) In the 1960s Singapore had racial riots and between ethnic Malays and Chinese. The authoritarian government of Lee Kuan Yew solved the problem by mandating social mixing. For example, apartment buildings had to have both Malay and...
Categorizing Bad Rulers (subtraction, combinations)

Categorizing Bad Rulers (subtraction, combinations)

Categorizing Bad Rulers (MathPickle, 2021) Our factory is a bit lazy. When making a ruler we only make some of the notches. Such a ruler is either BAD or TERRIBLE. Is the ruler with notches at 0-2-5-7 BAD or TERRIBLE? With BAD rulers, choosing any two marks gives a...