Editing Light Box (section)

== Demonstration ==

;Presentation (Stage):
# Set up the light box in front of the audience, making sure there are no color filters in yet. Turn on the three lights to show that they are all white light bulbs.
# Stick a red filter, a green filter and a blue filter into the three slots. Then, turn on the lights in the following order, asking students to predict what colors they should see on the screen when you turn on:
#* The red and blue lights.
#* The blue and green lights.
#* The green and red lights.
#* The red, blue and green lights.
# Ask the students about the colors they saw. What colors did they predict? What colors did they not expect?

;Presentation (Hands-on):
# Set up the light box with the filters set next to it. When students come up, ask them to use the filters to create new colors with the lights.
# Give each student a slip of paper, and have them use the crayons to draw the colors that they used and the colors they made. Ask them if the colors mix the same way with crayons, and to think about why they mix differently.