Mrs. Crull's Second Grade Class

Wednesday, October 8, 2008

Candy Probability

This week we are learning about probability. On Monday we discussed the concepts of certain, impossible, possible, likely, and unlikely, and how they relate to probability. On Tuesday we did 2 probability activities. The first activity had to do with candy and the second activity had to do with socks. Obviously the kids liked the candy activity the best! :) The students were divided into 6 groups of 3. Each group was given a brown bag with 10 colored candies in it. There were 6 orange candies (some groups had red because there wasn't enough oranges to go around), 3 purple candies and 1 white candy. They took turns pulling candy out of the bag and had a data sheet that they were to use tally marks on to keep track of the colors they pulled. They did this 20 - 30 times. In the end, they were to see that the orange/red colored candies were picked the most and the white candy was picked least. Unfortunately, some groups tally charts didn't follow this rationale. But this lead into a discussion that this was just a small sampling, and that if you were to do this 100 or 200 times, you would have had a more accurate outcome. Everyone had fun with the activity, and it was a great opportunity for me to take some pictures of the class too! :)

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