by MathPickle | Sep 14, 2015 |
Round-off Dragon (MathPickle, 2011) Through 15 minutes of irony and humour – guide your students to learn the importance of rounding off decimals. You will adopt the opposite, belligerent insistence on ABSOLUTE precision. The ridiculousness of the request soon...
by MathPickle | Sep 14, 2015 |
Dot to Dot Precise Measurement Puzzles (MathPickle, 2012) Give your students practice in measuring distances precisely. This is one of the puzzle designs I am most happy about, but I have changed it a little bit from the puzzle in the video above. Now I provide an...
by MathPickle | Sep 14, 2015 |
Make three equally spaced notches along the four sides of a square. Choose one of these three notches on each side. Connect them up to form a simple quadrilateral. For example, here we have chosen the middle notch on each side. What is the area of this...
by MathPickle | Sep 12, 2015 |
Arrows (Eggleton & Fraenkel, 1975) Categorize 9 games based on the answer to two questions: 1) Will Emperor Jiaqing win / tie / lose if he goes the first. 2) Will the Pirate, Ching Shih, win / tie / lose if she goes the first. The games are all variants of the...
by MathPickle | Sep 12, 2015 |
Kobon Triangles (Kobon Fujimura, 1981) Math Puzzles do not get more beautiful than this one from Japan. It should be used by either elementary instructors who need to give their students practice holding a ruler and drawing a straight line or by junior high...
