Activity 6

Laundry: The Math of Sets

Do the wash

  • Little kids can help sort the clothes before the wash.

  • Someone can measure the soap and put it in.

  • After everything is dry, kids can help sort things into piles—all the socks, all the towels, all the T-shirts.

  • Bigger kids can match the socks and put them into pairs and make piles of the clothes after they’ve been folded, so Peter’s T-shirts are all together and separate from Mary’s.

  • Anyone can help fold. Lots of math there—when you fold a towel, does it matter if you make the first fold crosswise or lengthwise? Can you make a triangle? How many times do you fold a sheet in half to make it fit on the shelf?

  • When things are all folded, the sets can be sorted so that the things that are going to the kitchen are together, the things going to the bathroom are somewhere else, and the things going to different bedrooms are sorted to make it easy to put everything away.