Let's look at a lesson based on the activity you've just explored. Watch the extended video excerpt (duration 7:00) at left. In this video segment, Mr. Ramirez's second- and third-grade students work on discovering and naming various shapes that can be made from the "folded square."
Read the questions below before you watch the video. Then answer the questions. (You may choose to watch the video a few more times!)
- What formal and informal geometric terms and phrases do the students use?
- How does the teacher facilitate communication and the development of formal vocabulary?
- How does the teacher promote students' reflection on their own ideas and understanding?
Observe communication in a classroom