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top 3 tips: 1. keep 3-5 min, longer= lose interest; call out students names in videos, allude to class secret or secret word used during next school day 3. Storyboard plan your video 5. Hold students accountable: can't participate in class experiment/activity if haven't watch video. Give quiz at beginning of class. Use unlimited attempt online quiz to complete to 100% after watching quiz. 6. Create forum where kids can discuss video, ask questions...then assign kid to be teacher assistant to answer questions, cont discussion

Zoom into Microscopic Worlds With the Java applet Secret Worlds: The Universe Within, your students can view the Milky Way at 10 million light-years from Earth. Then they can move through space toward Earth in successive orders of magnitude until they reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, they can begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and, finally, into the subatomic universe of electrons and protons.