What kind of affordance you’ve experienced? Could you elaborate on the experiences you've had using the concept of affordance?

Instead of the three reformulations, if there are other strategies to solve the following situations:

a). Unclear expression and sophisticated language in class;

b). No response after a question is posed;

c). A linguistic error occurs in the whole-class discussion. 

Affordance: Professors' office hours provide students with affordance that they can take initiative and show agency to employ this opportunity.

Scenario b:

1. Group discussion first and

2. Invite students to answer.

3. The teacher answers his/her own question.