Circular Model for Binary Numbers, Binary Thinking, Base Two System, Place Values

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Circular Model for Building Binary (Base-Two) Thinking: 8-bit This is a circular model (8-bit, about 110mm in diameter) designed to help kids develop binary numbers or reasoning skills in a fun gaming way. It doesn't require a wide base to stand and is easy to spin around. You'll need a circular board and 8 copies of the digits 1 and 0 each. The game works on integers between 0 and 255, including both endpoints. There are many ways to use this binary game board. Here's one way to play with a child or at a party: How to Play Start by asking a kid to think of a base-ten number between 0 and 255 without telling you. Then ask, "Is your number bigger or equal to 128?" If the answer is yes, place a "1" in the 128 slot and subtract 128 from the original number to get the remaining number. Otherwise, place "0" in the 128 slot and move on. Ask similar questions about the leftover using 64, 32, 16, 8, 4, 2, and 1, placing either "1" or "0" in the corresponding slot. The result is the base-two representation of the kid's original number. It's essentially binary sorting using place values. By adding up all the place values with 1's, you'll be able to figure out the original base-ten number. The kid will be amazed by your math skills! Switch roles and play again and again. I've used this binary game many times with kids and college students, always with great results.