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.

Dirt cakes and three dimensional worms

Objective: Students take active role in creating a worm of their own.

Activity:
1) Class makes Dirt Cake using Oreo cookies, cream cheese and whipped topping. Top with flower (silk) and gummy worms.
2) Using patterns, students make 3-dimensional worm.

Assessment: Teacher evaluates by observing each students' worm.