Target: doing what they can to encourage girls to study math and science. (This page was taken from a slick Target catalog/ad mailed out during the holiday season.) Thankfully, gender stereotypes in popular culture died out in the 1960s.
ETA: The versions of this ad in order of probability that you'll see them
1. Mom vacuums with daughter
2. Dad vacuums with daughter
3. Mom vacuums with son
4. Dad vacuums with son
(I might have 2 and 3 in the wrong order.)