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 | Dec 31, 2025 |
IQ Fit (Recommended by Geneviève Boulet) IQ Fit is a commercial product that Geneviève Boulet is recommending without bias. She did not receive a free copy of the product, nor does she have any connection to the company. The same goes for me. Teaching is an...
by MathPickle | Dec 30, 2025 |
Vertex Recipe (Jeremiah Hockaday, 2025) Which vertex recipes work and which fail? Look for patterns. The conversation continues below about why graph theory should be considered when designing curriculum. Do these fail? {1,2,3} {1,2,3,4} {1,2,3,4,5}...
by MathPickle | Dec 30, 2025 |
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....
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...
