Unit 3 Activity 3 - Mathematical relationships To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. Exploration #1, STEP 3: Moving Man simulation. Exploration #1, STEP 3: Moving Man simulation. You should be able to run this yourself! Click on the image below and follow the instructions in the activity. This simulator is one of many developed by the Physics Education Technology (PhET)group at the University of Colorado at Boulder. Return to Unit 3 Resources Page Copyright © 2020 LEAP