This is an elementary age appropriate Red Ribbon Week lesson about peer pressure. It correlates with Julia Cook's Peer Pressure Gauge, but could also stand alone (just skip slide #2).
Slides include discussion about the meaning of peer pressure; discussion questions about the book; peer pressure tricks; saying no tricks; and then a tic-tac-toe style game reviewing the information from previous slides.
I do this lesson with 2nd grade students, but could easily work with 3rd and 4th as well. I read the book, go through the first 4 slides and then split the class into two teams. I draw a tic-tac-toe board on the board and students can choose where they want their X or O to go. I click on the corresponding question and if they get it right, they get their letter on the board, if they get it wrong it goes to the other team.
The students are always very engaged and go away with deeper knowledge and understanding about the concept of peer pressure and how to say no.