Ask students to work in groups.

Allow students to freely explore the models.

Ask questions to direct students, such as did you try setting up (clicking SETUP) the model, every time you changed a condition/parameter?

Ask questions to understand what students have been doing, such as how did you figure it out? What did you change in the model? What did you not observe? How many times did you repeat the experiment?

If a student does something interesting, ask her/him to share the observations/findings with the rest of the class.

Project the model on the screen and discuss it with the students after they have done some exploration and investigation on their own.

Ask students to demonstrate their ideas, findings, and observations using the projected model.

Add your own questions to facilitate students’ investigations of the models.

Don’t tell students what to do immediately. If they get stuck, ask them to ask others in the classroom.

Don’t be overly concerned about maintaining decorum and discipline in the classroom. Some productive chaos is helpful for student learning.

Don’t sit back and expect that the models will be enough for students to learn everything. You should walk around and facilitate students’ explorations and investigations by talking to them.