Well, our new routine is that after dinner Jeff and the kids "do school" with materials that I've prepared earlier.  Lately they've been fascinated by mixing colors. I keep meaning to get some good quality tempra or finger paints and let them go outside and experiement but it's either TOO hot, or very rainy. 

So we decided to figure out some other way; that other way turned out to be playdough. 

I love having Jeff so involved in their learning, he tends to take things much deeper than I would, but surprisingly, they seem to keep up with whatever information he gives them.  There's nothing like hearing your 3 and 4 year olds in the other room earnestly discussing tertiary colors with their father.