«All of a sudden she was brining home first grade level math homework,» she said. (laschoolreport.com)
By doing some simple first grade level math (3000 - 2500 = 500), you can see that there are 500 left over calories that are taken in but NOT used by the body. (acaloriecounter.com)
All the children in the low reading group in classroom 4 were reading at or near an end - of - first grade level in May. (ciera.org)