Sorry, we will not be playing Jenga in this session. However, Jenga principles exist in every HS mathematics course. Our ACT data tell us that our HS learners need support with structural thinking. Structural thinking is a big need for our learners and it is a challenge to develop. Come, and experience and consider ways to support students’ development of structural thinking in HS courses from the language we use to the prompts we ask to the strategies we spotlight.