 The
old binary number magic trick with a couple of very important features
not found in other versions.
These
cards are extremely durable for years of use by students.In
case they don't last, this product comes with a lifetime
replacement guarantee!
Also
included are a card of instructions, explanation and list of binary numbers,
1 through 63, and a full sheet explaining the binary system and
the math concept behind the trick.
Some
children know this one; few understand why it works. |
