Normally I'd post this in the elementary section because I teach 4th grade... but I thought those that teach upper level math might be able to give me insight as well. We use Everyday Math for our curriculum, though I do not follow it page by page exactly. In the curriculum it introduces decimals first (up to the thousandths) and then introduces fractions a couple chapters later. The way it deals with decimals is by using cubes, longs, and flats. A flat is made up of 100 tiny cubes and a long is made up of 10 tiny cubes. So if the Flat is the whole (the One) then 1 long = 0.1 or 1/10, and the cube = 0.01 or 1/100th. As far as I can remember, it doesn't actually show the fraction. They develop their understanding of a decimal being only part of one by looking at the concept that 0.1 x 10 = 1... etc etc. Do you agree that dealing with the decimal concept first is good, and then dealing with fraction concepts after?? I'm not sure if either one is better first.. I just know that it was a challenging concept for my kids in general. Thoughts????