by MathPickle | Feb 25, 2026 |
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...
by MathPickle | Feb 23, 2026 |
Crumbling Castles (MathPickle, 2025) Ready for some inductive problem solving? You can first try to figure out what’s going on yourself… Here is the puzzlesheet. Spend 5 minutes looking for aptterns and then read on so you’ll see how to present it to...
by MathPickle | Feb 4, 2026 |
Minimal trips around the Collatz Galaxy (MathPickle, 2025) What’s going on in this loop? We are going to present it to students as a mystery to be discovered. The solution above is a failure. Whenever you are telling a classroom of students that they failed, you...
by MathPickle | Dec 29, 2025 |
Can you figure out the rules for fussy friend graphs just by looking at an example of a failure due to a fussy friend? The “4” is a fussy friend. This graph failed because the edges connecting “4” to other friends do not add up exactly to 4. To...
by MathPickle | Oct 30, 2025 |
Steamrolled! (MathPickle, 2025) If you are in grades 1-3, all you need is addition and good thinking. If you are in junior high, you can use algebra to tackle more difficult steamrolled puzzles. Make your own or try to solve mine here. Thanks to Vincent Chan and his...
