So, I gathered the suggestions and read them to the class. Then I said, "Are you ready for the real names? Let me know if they make sense." I began naming the angle pairs slowly. For angles 4 and 5 I said "Same side...(ooohhhh, the class murmered)...interior." (Some said "huh?", then said "oh!".) I went through naming each angle pair. I thought the activity was pretty much a bust...until the kids started having to classify the angles. The confusion, perplexity, and struggle that looked so messy to the outside eye was working wonders on the inside. They paused before naming any angle pair, I could see their minds working.
I'm beginning to realize that deep thought on the part of the student does not necessarily look like what I thought it would look like. I had imagined quiet contemplation, maybe some head nodding and a finger on the chin (imagine the thinker pose here). Instead, I am coming to realize that for some kids, thinking is noisy and active. I need to be comfortable with that. I also need to be confident enough with it so that if someone does walk into my classroom, I don't immediately start trying to shush the kids. Noise = thinking in my class and for my current students. It's working so far for me!