This column presents ideas and techniques to enhance science teaching. In this month's issue an upper elementary Science, technology, engineering, and math (STEM) challenge brings an engineer into the classroom while emphasizing cooperation, communication, and creativity. STEM activities come in various shapes and sizes. Some are quite involved…

Hopscotch, basketball, or hide-and-seek? Children have many choices at recess, and while making these choices they must consider and make trade-offs. The way they make these decisions is not that different from the thought processes engineers use when making design trade-offs. Engineers have to make trade-offs because a design that meets all…

In this article, the author describes several activities in personal care chemistry that provide middle school girls with opportunities to learn firsthand about science and engineering technology. These activities--the preparation of lip balm and hand lotion--are fun, easy to do, and make use of relatively inexpensive, safe, environmentally…