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In this number puzzle/trick, learner #1 thinks of a number between 1 and 63. Learner #2 shows learner #1 six cards and asks them whether the cards contain their number. Learner #2 uses this...

In this math game, learners identify the factors of a number to earn points. Although practicing a mundane skill, learners enjoy the work because of the game scenario. Built into this game is...

This simulated balance beam illustrates binary mathematics. You have a set of weights and the goal is to match an unknown weight, but you only have weights that have mass 1, 2, 4, 8, and 16. You...

The rules of Krypto are amazingly simple—combine five numbers using the standard arithmetic operations to create a target number. Finding a solution to one of the more than 3 million possible...

In this math game, learners throw dice and place the numbers in one of four boxes. Learners repeat this three more times and the learner with the largest four digit numbers is the winner. Learners...

In this Cyberchase activity, learners use the numbers one through six to solve a puzzle. Learners are challenged to arrange spiders, numbered one through six, on a triangle so that each side of the...

Learners create an Incan counting device called a quipu (pronounced kee-poo). Similar to an abacus, a quipu is a series of strings tied together, with a complex set of knots tied in each string to...

In this classic memory game (on pages 37-45 of PDF), learners turn over tiles to reveal images on the back. They turn over two tiles at a time, and try to remember past tiles so they can find...