Middle schoolers create a dichotomous key. In this categorizing lesson, students create a dichotomous key for different types of cereal. Middle schoolers classify the cereal into groups such as flakes and cereal with holes. Students...

Fourth graders work in small groups to sort and classify a variety of objects. They develop criteria for sorting and explain the characteristics they chose for classification. Groups record and share their classifications.

Learners, in groups, classify furniture, share their categories and rationales, then note how their different schemes vary, perfectly logical and useful, but completely arbitrary.

Looking for a fun and interactive way to explore bovine biology? Learners read a brief informational text (included for printing) before participating in several cross-curricular activities. First, grab their attention with a hilarious...

Written as an accompaniment to a field trip to the Out of Africa Wildlife Park in Arizona, this is an interdisciplinary, themed lesson on lions. Even if you cannot take your upper-elementary kids to this attraction, there are a few...