Our sandbox is located outside the classroom near the student patio. We keep it covered with a tarp to keep out the local cats! The students love the exercise. We don't necessarily assemble an entire skeleton. For example, we might bury a portion of a mandible, then ask the students to identify whether it was a carnivore, omnivore or herbivore based on its dentition. Sometimes asking a critical thinking question about the bone is more fun than just naming it.
