I was checking Smallsteps' math homework yesterday and she made an error in one of the questions. She makes so few, so the errors she makes tend to be speed errors, where she doesn't slow down enough to check her answers. The other thing is that she has a great memory for many things, but she doesn't necessarily understand why she is doing some of the equations, or what is conceptually happening. So, with my highly limited math skills, I tried to explain the concept of the "=" sign in an equation.