This box includes 64 reversible 2" square tiles that can be flipped to either a black (zero) side or a white (one) side. This box also includes rectangular tiles labeled with the powers of 2 (between 1 and 128) to help demonstrate place values in the binary number system.
Tiles can be placed in rows to practice counting, converting numbers, or in a grid to demonstrate how computers convert bitmap images to and from numbers.
These tiles work well with many of the activities in the CS Unplugged curriculum (e.g. Error Detection | Computer Science Unplugged