… my most-disjoint part of class is after I work a problem and need to evaluate whether the class understands. Currently I look at their faces for signs of confusion (or sleep). Then I cold-call 2-3 people (out of 25-35) and ask them to self-identify if they understand or want to talk about it or want to work another problem. Then I ask the class “are we good?” And I’m not getting a good understanding of what level of understanding the class has. These problems take 10-15 minutes each, so I need to get a good evaluation before deciding whether to work another. What do you do to evaluate class understanding on the fly? (Or do you?)
#1: I have the students do call and response or sometimes I’ll cold-call. I don’t cold call enough in one of my classes and I wonder if that’s why I have a small handful of students who are getting Cs. They all sit together and have last names that are similar. I need to work on this.
#2 That kind of question is hard for me to answer because I frequently use problems for which there is no one right answer. You can poll the class about what they got and how, having them report back to the big group, designating 1 person per group as the reporter. I would have them vote: “Raise your hand if you think you got the right answer and are very confident.” “Raise your hand if you don’t know if you understand or not.” “Raise your hand if you’re totally confused.”
Does anybody have better suggestions for Rumpus?