Manufacturers often claim that their particular toothbrush design is better than the competitors, but is it? As a result, engineers must consider the economic issues involved with selling the products they create, as well as their functionality: to produce the best possible toothbrush regardless of cost, or the toothbrush that will sell the most,…

Middle school students often struggle when writing testable problems, planning valid and reliable procedures, and drawing meaningful evidence-based conclusions. To address this issue, the author created a student-centered lab handout to facilitate the inquiry process for students. This handout has reduced students' frustration and helped them…

Habits of inquiry should be nurtured as early as possible. Elementary students must be challenged to ask good questions and develop inquiring attitudes. As a science teacher, educator, professional developer, and science program reviewer, the author has often observed that the default is to use "good" science investigations from…

While learning about the types of weather events that occur in the local area, students in grades 4-6 were asked to consider how structures can be built to withstand extreme weather conditions. Teams of students designed, constructed, and tested buildings to withstand hurricanes and designed the tests they would use to evaluate their structures.…

Using an adapted version of a recently published scientific article, a group of sixth graders worked together identifying conclusions, deciding on appropriate evidence, suggesting improvements for the study, and recommending further investigations for scientists. This experience provided opportunities for these students to use reading to decide on…

The messages students receive through popular media such as movies, television, the internet, and music videos have a powerful influence and can shape their thinking. A national survey of media use by 8- to 18-year-olds found the average adolescent spends over seven and a half hours daily with entertainment media (KFF 2010). Rather than viewing…

A sixth-grade class investigated the ecologies of two local retention ponds over the course of one school year. In this context, instruction assisted development as students designed models of the pond in one-gallon jars and attempted to stabilize these jars in sustainable ecosystems that could be used to study questions about the ponds.…

National Aeronautics and Space Administration (NASA) Engineers at Marshall Space Flight Center, and their partners at other NASA centers and in private industry, are designing and beginning to develop the next generation of spacecraft to transport cargo, equipment, and human explorers to space. These vehicles--the Ares I and Ares V launch…

In "Hands-On Science Mysteries for Grades 3-6," the authors connect science to real-world situations by investigating actual mysteries and phenomena, such as the strange heads on Easter Island, the ghost ship "Mary Celeste," and the "Dancing Stones" of Death Valley. The labs are designed to encourage the development…