by MathPickle | Oct 31, 2025 |
Composite Critters (Inspired by Solomon Golomb, 1981) In my twenty years of designing puzzles for the classroom, this is the most important because it reliably engages K-2 students in rich mathematical ideas that were traditionally introduced many years later in their...
by MathPickle | Apr 4, 2024 |
Taxi Cab Triangles (MathPickle, 2023) I love the look on students’ faces when I call these things triangles. “These are not triangles”, they insist. This is precisely the type of discussion on definitions that is so useful. We might end up calling...
by MathPickle | Apr 4, 2024 |
Color Vortex (MathPickle, 2022) A beautiful Mini Mathematical Universe for your students to discover. What are the rules governing this universe? What questions do you have? If you can answer the question I have in the video I’ll be so so happy! It is...
by MathPickle | Jul 1, 2019 |
Number One! This challenge is for everyone out there who loves their team to be #1. It’s a great number! The number one is created using different positive integers in a fraction. The first time this is possible is when the maximum integer is six. Yippee! We...
by MathPickle | Jan 16, 2019 |
A house of mirrors can be a dangerous place to live. Bump a wall and the whole house can fall around you – sharp shards everywhere. That’s why there are rules for anyone planning on building a house of mirrors. Rule 1: EQUAL NUMBERS OF EACH COLOR. This...
