#1. ATTENDEES ANSWER QUESTIONS IN AN ONLINE SURVEY
Everyone logs on to choose the best reply to technical questions about the upcoming topic: Pivot Tables.
#2. AFTER EVERYONE HAS ANSWERED, THE ATTENDEES SEE THE RESULTS BELOW. This chart represents the survey answers to Question #2.
The correct answer is the second choice (group data into categories). The lower number of the respondents who got it right (the middle blue bar) tells the instructor that this is a knowledge point that requires teaching / discussing. The attendees are primed to listen because they have participated and have taken a stab at the answer.