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.

Testing the composition of marker colors using paper chromatography.

Objective: To use the scientific method to solve a problem.

Activity: The students will test the composition of water color markers using paper chromatography.

Assessment: The teacher will check the results of the chromatography experiment.