- 
It is important to avoid asking questions where you are looking for one best answer. These questions lead to IRE (Interrogation, Response, Evaluation) sometimes known as guess what’s in my head.
 - 
This is when you respond to students who are discussing instead of encouraging and eliciting the response of other students.
 - 
Consider the following example questions that use Productive Talk Moves for an in-class discussion about efficiency:
 - 
"We would agree that efficiency is good, but there are many debatable elements to efficiency."
 - 
"There are multiple kinds of efficiency. Which is best? Speed? Size?"
 - 
"Can you ever maximize all kinds of efficiency?"
 - 
"Does it even matter if code is efficient?"
 - 
"What about less efficient code that is more readable?"
 - Note from CS Teaching Tips Team: Check out Michelle Friend’s tip to learn more about Productive Talk Moves.