3V1267.01 Computer-based cuisenaire rods (7/12/81)
Peggy enjoyed playing with the Cuisenaire rods during out experiment P181. Either in that one or the next P182, Peggy first accomplished a set of “stairs.”
After the end of the experiment, she continued playing with rods and I heard her mention (at a point where she omitted the 3-length green rod from a series) “Oops. I left out the poor little green one.” After knocking them over and restarting, she went on to omit the 4-length and said something similar – perhaps “left out the purple-y”