Activity, Problem, Puzzle
MathPickle.com is a free online resource of original mathematical puzzles, games and unsolved problems for K-12 teachers.
MathPickle.com is a practical resource for teachers. Its visually compelling puzzles and games engage students in tough problem solving. Its puzzles are organized by grade and subject – each designed for a 45-60 minute period. All have low-floor, high-ceiling. They engage struggling students in curricular skill acquisition, and deflect top students into tenacity-building challenges.
16 April 2020 Edit: 16 April 2020
User submitted, thanks to MrsGillroy