3V1011.01 Jumping Jacks and Counting (10/27/80)
Peggy sometimes goes to gymnastics make up classes with Miriam. She
has seen the girls do jumping jacks and counting them. Whenever she
feels full of energy, Peggy is as likely to break into jumping jacks as any
other activity. Usually Peggy counts, but with the numbers 16 and 19…
not any others, so far as we have been able to observe.
I see the significance of this observations as pointing to a micro-world
of counting knowledge — which will later fuse with others (such as
object counting: 1, 2, 3, “A whole lotta bunch”) and recitation: 1, 2, 3,
5, 9, 13, 15.