As a mathematical device, the infinity sign was first discovered in 1655 by John Wallis, but its significance as a religious symbol is much older. The infinity sign has its origins in the Arabic numerals that actually came from India in the first place.
Unifix cubes are the basic block for any classroom. They are made of plastic and connect to each other on two opposing sides. They can be used to teach almost all math concept areas, ranging from one-to-one correspondence, patterns and basic number operations to fractions, multi-base projects and beginning algebra. Since students can separate unifix cubes into single units, the level of abstraction of these manipulatives is very low.
As we worked, I discovered what fun this set of hand me down Unifix Cubes were, and just how much learning was taking place! Math With Unifix Cubes. I started by setting out a couple of addition flash cards and telling my son to make the addition problem with the cubes. This was pretty simple for him, so I showed him how he could self check the answers on the back. Here is he is getting started: