Unit M Activity 1 To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. Exploration #1, STEPS 1-4:  Pulling one string on the Mystery Tube. Exploration #1, STEPS 1-4: Pulling one string on the Mystery Tube. STEP 1: Choose ANY of the three movies below. STEP 2: Choose a DIFFERENT movie. STEP 4 (first part): Choose the REMAINING movie. Pulling String #2 Pulling String #3 Pulling String #4 Exploration #1, STEP 4 (last part):  Pulling different strings on the Mystery Tube. Exploration #1, STEP 4 (last part): Pulling different strings on the Mystery Tube. Return to Unit M Resources Page Copyright © 2020 Next Gen PET