this nature coloring book from Rod & Staff(giggle). I color while she practices her letters and numbers. She doesn't like being watched over, so this takes the pressure off her.
My son, a seventh grader, is an independent learner, so he needs very little supervision or formal teaching. I spend a little time with him going over corrections or filling in the weak areas, but otherwise he keeps up with his learning. He was tough to teach when he was younger, but he hit his stride around third or fourth grade. We spent quite a bit of time on character development in those early years.