When I was giving her this lesson, I was very methodical, deliberate, and thoughtful with my movements. I said "hmm" when I was thinking about which knobbed cylinder to put in each place. When E was completing the work, she kept saying "HUMMM," and now she calls this work "HUMMM." When I ask her if she wants to do "HUMMM," she excitedly shakes her head "no" which means "yes." (she's gotten a little confused about the difference between shaking and nodding her head this week...so cute).
Here is a video of E working with the knobbed cylinders. I could watch this video over and over again. I love watching the way her mind works. The mind of a child is an amazing thing.
She didn't finish the knobbed cylinder, but we left it out and finished it later.