Hi, Karen.

I have 4 kids and have taught up to 3 levels at a time (with babies and toddlers). It does take a little balancing - however, the outcome has been well worth it.

Most of the time, Level B only took me about 15-20 minutes to teach (however, just like Helen said, there are days when it took longer). For Level D, 2 of my sons took about 30-45 minutes to teach and my 3rd son took about 30 minutes. It kinda depends on how the student 'receives' the information being taught.

I tend not to worry too much about 'grade level' simply because I really want my kids to UNDERSTAND the math. It does them no good to push them through a level just because they are ?? years old. In the end, though, my kids have done very well using RSM - including my dyslexic son who struggles with absolutely everything.

In my opinion, there is NO substitute for teaching your child math. When you teach your child directly, you can see it in their eyes if they understand something or if they really just do not get it. That clues me in as to whether they are ready to move on or if we need to stay on a lesson for a day or two longer.

Good luck!
Rachel