Geometric Construction, continued

Readers of this blog probably realize that I’m very much into geometric construction. This is in part related to my general interest in puzzles, in and out of the classroom. (In my other life, I construct cryptic crosswords.) My first math education publications were books of geometric puzzles for grades K-10. My pentomino puzzle books stayed… Continue reading Geometric Construction, continued


7 December 2019: At the Asilomar conference, Kim Seashore and I will present Lessons from Lew at 11am. (See below for more info.) At 1:30pm, I will present Connect the Dots, an extravaganza of geoboard / dot paper activities for ages 9 to 99: curricular challenges, interesting puzzles, and some unsolved problems. 26 November 2019:… Continue reading News