On Friday's I only have 30 minutes with the grade 3's. We decided to consolidate the weeks learning with this problem solving opportunity (For the record: This was supposed to be the WORKING ON IT portion of Wednesday's lesson).
Students had geobards and came up with a variety of responses. They were excited to share their thoughts.
Along there way there were some misconceptions, that we needed to clarify:
1 - This had 3 sides and 2 right angles, but was it a figure or shape?
2- Student could tell me that this was an octagon, but they couldn't point out the right angles - back to the drawing board.
3 - This shape had 3 sides, but where are the right angles?
4 - What a neat looking shape - again, right angles?
In the end we determined the following:
- All shapes, are closed figures.
- No 3-sided shape could have 2 right angles
- Once you figured out one shape, it was easier to create many more.
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