RT @NAPmath: Here are 6 different puzzle proofs of…
RT @NAPmath: Here are 6 different puzzle proofs of the Pythagorean Theorem with moveable pieces for your #SMARTboard exchange.smarttech.com/details.html?i…
RT @NAPmath: Here are 6 different puzzle proofs of the Pythagorean Theorem with moveable pieces for your #SMARTboard exchange.smarttech.com/details.html?i…
Interessante links voor het #SMARTBoard pinterest.com/napmath/ GreenApples.wikispaces.com napmath.wordpress.com smartboardsmarty.wikispaces.com/@NAPmath