My DS5 is currently on a self announced brain vacation this summer. He has done minimal reading and no formal math. On our drive home this morning from camping he asked me to explain what a sales/food tax was and how to calculate the sales/food tax on various amounts of money...this was something we had discussed last winter in great depth--at his request. Although he told me that he couldn't remember how to do it, it actually took much less time and explanation for him to exclaim, "Oh, I get it now".
I am not worried that anything he learned and forgot from this past year will not be quickly relearned when his interest peaks again.
