mean, median, mode

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mean, median, mode
By Kerry

In our school (fourth grade) we do a lesson on data collection using 1/2 oz boxes of raisins. The students estimate the amount of raisins in their box and then count. Each student can then write their amount on a post
it. Then have students line up for greatest to least. One from each side of the line can sit down until you reach the median. You can then use the data to make a variety of graphs to show the information. Mean and mode can be calculated from the data.
We also do a lesson about hat sizes. We pose a problem about a retailer not knowing how many hats to order in each size.

Then the students in pairs measure each others head size with tape measures. Then we use post its the same way as with the raisin lesson. These lessons are from the Everday Math program.