Presents math puzzles and enrichment activities within such topics as speed calculation, logical paradoxes, geometric puzzles, pattern reasoning, and combinatorial configurations.
Shows how Benjamin Franklin, inventor, writer and scientist, created a puzzle called the magic square to keep from being bored while serving as clerk for the Pennsylvania Assembly. Includes step-by-step instructions for creating your own magic squares.
"In Junk drawer geometry, educator Bobby Mercer provides readers with 50 creative geometry project ideas for engaged learning. Each activity includes a materials list and detailed, step-by-step, instructions with illustrations"--Provided by publisher.