In this workshop, participants will engage in many activities designed to make student thinking visible through modeling, and other strategies. Science and engineering practice two asks students to design and use models that are explanatory and predictive. This workshop will provide resources for participants to shift their classroom practice from students using models, to students engaging in the practice of modeling. Participants will also learn how to use student models and other visible thinking artifacts as part of assessing student understanding. All participants will leave with goody bags and activities that can be used in class the following day.