Smileys

Smileys

June 24, 2021 Incubator Daniel and Mason presented on Smileys. That’s a puzzle that has you sparsely filling a grid with smiley faces. Then you start the app running. At each time-step a grumpy face turns into a smiley face if it touches two or more smiley...
The reflection fad

The reflection fad

I want to raise a red flag about a practice that may have value, but is being pushed too much. Asking children to reflect and articulate how they think is not as important as thinking. Math class should be spent thinking – not thinking about thinking. If I see...
Relying on Peer Pressure

Relying on Peer Pressure

I have honed some techniques for introducing new games and puzzles into the elementary classroom. From my previous blog postings (and the video below) you will know that I do NOT recommend teaching the rules at the start, but rather to engage students immediately by...
Scarce Paper

Scarce Paper

I failed yesterday. Background: I encourage students to work in pairs or occasionally triples with a single puzzle-sheet shared between them. In my classes paper is a scarce resource. I love to see co-operative math as in the photo above. However, I have been relaxed...