Tonight, in Midnight Math, Dad started things off by asking how to use rods to find the center of another rod. He demonstrated this with a 2 rod and two 1 rods. He then asked Nigel to show him how to do the same thing with a 10 rod. Nigel got out a bunch of 1 rods and counted five on each end until they met in the center.
They then talked about averages with temperature and a thermometer, and said that an average is the middle. Dad asked what the middle is. Nigel replied, "The center." Dad asked what the center means, and provided the definition that the middle or center of something is the place where there is the same amount on each side of that place.
Dad next asked how many units to the middle of ten. "Five" was Nigel's answer.
Dad: If we divide 10 into two equal parts, how many will be in each part?
Nigel: Five.
Dad: That is the same as asking what is 10 divided by 2. What is 10 divided into five parts?
Nigel went for the red 2 rods to find out. A great guess.
No comments:
Post a Comment