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.

Children design their own rainbows.

Objective: To make up their own rainbow (any shape, they can use the correct sequence of colors or create their own sequence).

Activity: Given a variety of media to work with, such as colors, markers, paints, construction paper, etc., design their own rainbow. Encourage them to use any shape and they can sequence the colors or make up their own sequence of colors.

Assessment: Their rainbows will be their evaluation.