This package was created to assist students in understanding the meaning of the sign for addition. Students are to work with watercolors. The directions ask the students to color in the palettes with a primary color and then to add the two colors together to equal a secondary color. My students have really enjoyed this activity. There are two flip books. One has the colors added and the correct secondary color does not follow the equal sign. This was done so that the students could lift the flaps to find the correct color.