This collection uses primary sources to explore Tim O'Brien's novel, The Things They Carried.

Students are given a biomedical engineering challenge, which they solve while following the steps of the engineering design process. In a design lab environment, student groups design, create, and test prototype devices that help people...

The diversity of bird songs is covered in this article from the companion site to PBS's "The Life of Birds." They can communicate about size, aggression, territory, mating, food, and many other things and they can produce a range of...

A learning module where students analyze the relationships between the structures and functions of cells, tissues, organs to carry out all of the requisite characteristics of life. They also describe the scope of biological study and...