Number related
3V1416.01 A Big Penny and a Little One (12/8/81) We went to Boston this day for a pre-Christmas visit. Rob hung around LCSI with me. Miriam took Peggy over to the Childrens Museum. Late in the day, the kids were going out with Greg to buy sodas and Peggy — of course — wanted to …
3V1275.01 Computer “rods” (7/20/81) Seeing the trouble she had with the rods always falling over, I asked is a Rods microworld would be easier to manipulate and thus intellectually more accessible to her. So I proceeded to make one, substituting (a later idea) the blinking of numbers in place of partial blanks — that is …
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 …
3V1179.01 Counting Plates with numbers in various ranges (4/15/81) Peggy loves to help empty the dishwasher. After stacking the small plates on the shelves, she began counting: 1, 2, 3, 4, 5, 6, 9, etc…18… She continued from stack to stack, using ‘big’ numbers as well, “eighty, ninety, tendy” repeating them as well as smaller …
3V1155.01 Cuisenaire rods: playing with them after experiments (3/22/81) Guessing games Peggy had used Cuisenaire rods in the immediately previous videotape. Somehow she got hold of them again and I became aware that she was laying them out [Bob had, I think, tried to see if she would build a “stair.”] As she did so, …
3V1148.01 “Tendy” (3/15/81) While working on dinner in the kitchen amidst a circus of children, I suddenly heard out of the chaos Peggy counting, ‘eighty, ninety, tendy, eleven…’. She trailed off there, perhaps having said ‘eleventy.’ Gretchen