Encourage tinkering with ideas, relationships, connections. Set up situations where students have to find information not readily available in school texts. Provide opportunity for students to design open-ended explorations of the concept. Provide multiple options so students can plan a unique "proof" of learning.

Make tissue-strip window designs.

Objective: To make their own design using tissue paper overlapping the paper to create new colors in their design.

Activity: Tissue-Strip Window Designs Materials needed: waxed paper, liquid starch or watered-down white glue, large paintbrushes, thin strips of tissue paper in primary colors. Directions:
1. Cut waxed paper into sheets about 16" in length. Two sheets are needed for each design. 2. Place one sheet of waxed paper on a sheet of newspaper and paint with a thin coat of liquid starch.
3. Place strips of tissue paper on top of liquid starch before it dries. Arrange the red, yellow, and blue strips in an overlapping design. The strips do not have to lie flat.
4. When the design is complete, place the other sheet of waxed paper on top and press to seal completely. Let dry.
5. Point out the new colors made by overlapping tissue strips. (The children could do this.)

Assessment: Did their design show new colors due to the overlapping of tissue strips?