After going through the two main solution methods for the photo enlargement problem, the teacher asks the students how they can generalize.
Definition of Proportionality, Photo Enlargement Problem, Clip 4, 2:11
This video is an example of teacher questioning. Good questioning strategies are very useful when the students are working together in groups. It is important to help guide them without giving away the answers.
Notice how the teacher brings attention to a response from a student. That will help encourage students to contribute. It is also important for the teacher, especially early in the semester to help students recognize correct responses, especially when they are conceptually based.
