Collection

Mathematics, Magic and Mystery by Martin Gardner

Solved deductively, the puzzles difficulty can be moderated by using hints provided!

Cross numbers are the mathematical equivalents of crossword puzzles!

Dice, DT10 Sided Single, Koplow (00–90), Tens

Dice, 10 Sided Single, Koplow (0–9)

Let's Count NYC

Simply spin to create a dazzling array of irridescent rainbow shapes.

Proof Stage: How Theater Reveals the Human Truth of Mathematics, The (Softcover)

It only takes a small spark to ignite a child's mind.

Pythagorean Theorem for Babies by Chris Ferrie

Touch Think Learn 123

From the firing of neurons in a fraction of a second to the monthly cycle of ovulation to a seasonal shift in sleep patterns, the human body runs on rhythms—all more knowable now than ever, thanks to wearables. Making sense—and making use—of these signals