I was teaching my kindergarten students about "expression" in art. We talked about this in relation to mood/emotion. The students enjoyed making faces at each other...attempting to show MAD/HAPPY/SAD/ANGRY/SCARED. We discussed what the face "did" to express emotion. We also discussed colors and how they related to mood/emotion.
Each student was given a 12x12 piece of white paper & a diffuser circle. They were instructed to trace the circle onto the white paper. They then placed the circle out of the way & created an emotion monster. Students then took their circle and drew lines of color on the diffuser circle using water based markers. I then sprayed their papers with water. The following week they got both the paper and the circle back. We created a second monster with the diffuser circle itself on black paper. Students used construction paper crayons to finish the monster from the previous week....and they used construction paper crayons & collage to finish the new one.