My father in the center of the picture used to say, "If I had it do over again, I'd be a math teacher." Father, a factory worker at General Electric, reasoned that the pursuit of mathematics is an intellectual endeavor and did not require much equipment. Strangely enough his eldest son, the lad on the left, did become a math teacher. After a few years of teaching geometry, this son became a full-time science teacher. Teaching science does require a few pieces of equipment, which could regarded as sophisticated toys.