by MathPickle | Oct 12, 2015 |
There is one great minaret at Samarra, but what happened if Caliph al-Mutawakkil decided to build twelve!?! The Caliph loved beautiful geometry, so if he had built twelve minarets, he might have chosen to build them in an array with 90 degree rotational...
by MathPickle | Sep 29, 2015 |
Embryo Morphogenesis is a mathematical mini-universe. It is governed by laws which your students must figure out. Mini-mathematical universes like this are possibly a great way to learn the scientific method. It still needs work. If you’re embarking on this...
by MathPickle | Sep 19, 2015 |
Zome Zome is a manipulative that is excellent for the upper grades – however it takes time to put away and is fragile. Nevertheless, there is no manipulative so versatile on the market, so it should be considered. I am now equally in favour (especially for...
by MathPickle | Sep 19, 2015 |
Chomp! (Frederik Schuh, 1952) Here is the game of chomp and a very preliminary sketch of a game to do with linear inequalities. The latter would be a fun class project to perfect – it is NOT good enough to play right now. Let me know of your ideas how to...
by MathPickle | Sep 19, 2015 |
Hunting Submarines (John Costas, 1965) Costas arrays were part of submarine warfare and a great way to get practice with slopes. It is an unsolved problem of mathematics whether a Costas array exists for all nxn squares. The smallest square for which no answer is...
