Monday, December 6, 2010

Determining Sorting Rules

Last week, I taught a lesson on determining sorting rules. We focused on "have" and "have not." I introduced the lesson by activating prior knowledge about basic sorting. Then I called several students up to the front of the carpet and sorted them into two groups. Then I had those seated on the carpet try to determine my sorting rule. I made groups such as "has on blue jeans" and "doesn't have on blue jeans" and "has long hair" and "doesn't have long hair."

Then I read the book Liz Sorts it Out. This is a great book for sorting. Next I modeled how I wanted them to sort at their tables. I used two sorting mats and a bucket of fun creepy crawlies. I sorted the critters into two groups- the haves and the have nots and had the students determine my sorting rule. After several examples, they went to their tables to work in small groups with different items. Once they had sorted their objects, they raised their hand and had me join their table to try and determine their sorting rule.





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