by MathPickle | Sep 19, 2015 |
64 = 65 Mathemagical Proof (Martin Gardner) Get your older students to break apart a convincing mathemagical trick by linking it to the Fibonacci sequence and calculating the slopes of some line segments. Younger students derive a lot of pleasure by figuring out that...
by MathPickle | Sep 16, 2015 |
Wormhole! (MathPickle, 2011 – Based on work by Harold Coxeter and John Horton Conway) Send your students on a dangerous trip which coincidently happens to be a fantastic introduction/practice for division. If they make a mistake they’ll crash in a heap of...
by MathPickle | Sep 15, 2015 |
Subtraction Magic with 3 Digits (Martin Gardner or earlier) Students need to reliably add and subtract numbers of several digits in order for this to work in the classroom. It is not a good trick to teach these, but rather to review something that 80% of students...
by MathPickle | Sep 15, 2015 |
Magic 6 / 9 (Martin Gardner) Give your students practice skip counting through a magic trick. This is a sure winner to show off to parents. The ballet makes us look at those bodies, it makes us listen to that music, it makes us wonder at the geometry, of the way they...
