126 page free downloadable PDF book for grade 4-7 teachers showing how KenKen puzzles can turn mathematical problem solving into fun and how student motivation can be dramatically increased.
Julie was my student in the class "What Is Math". She was so afraid of Math that she never even looked at the board whenever anything mathematical was mentioned. One early morning Julie came to my
As regular readers know I have a love of incomplete or impossible quests. One such quest that comes very close to my work is quest for an aperiodic tile. A shape that can… Read More →
Math Monday: Hexagonal stick arrangements By George Hart for the Museum of Mathematics Interpenetrating hexagonal arrangements of sticks are a challenging mathematical exercise to assemble from pen...
Pi (from the name of the Greek latter) is familiar to all geometry students. It represents the ratio of the circumference of a circle to its diameter, and it appears in numerous mathematical and scientific processes, from measuring distances and volu...
Academic Earth offers free access to video courses and academic lectures from leading colleges and universities.
Short videos about numbers, maths and all sorts of other numbery stuff. We'll make you love numbers!
Imaginary numbers always confused me. Like , most explanations fell into one of two categories:
TED Talks Robert Lang is a pioneer of the newest kind of origami -- using math and engineering principles to fold mind-blowingly intricate designs that are beautiful and, sometimes, very useful.
What to do with such a bottle? Why not use it for something? Filling it was not easy, because the water flowing in blocked the air inside from coming out. So I decided to keep the remaining air in the bottle and see how effective the half-filled bott...
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A rotor is a convex figure that can be rotated inside a (or ) while always touching every side (or face). The least rotor in a is the . The least rotor in an is a with two of and equal to the .