Presents a hands-on activity on the phenomenon of genetic drift in populations that reinforces the random nature of drift and demonstrates the effect of the population size on the mean frequency of an allele over a few generations. Includes materials for the demonstration, procedures, and discussion topics. (KHR)

Reports how students use raw data to create a number of narratives integrating group observations in the laboratory with individual responses to humanities readings. (Contains 21 references.) (DDR)

Reports on the development and implementation of an integrated forensic science unit. Students examine and test evidence from a mock crime scene. Addresses many areas of the National Science Education Standards. (DDR)

Presents an activity in which race cars are designed and constructed out of edible materials. Students explore relationships between speed, distance, and time using both math and science. Includes a chart that shows alignment with the National Science Education Standards. (DDR)

Describes an activity on worms that investigates their anatomy and habitat and reactions to various environments. (Contains 12 references.) (YDS)

Introduces a science activity on the environment that uses a large canvas floor map and riddles. (YDS)

Introduces lesson plans on cycles designed for middle school students. Activities include: (1) "Boiling and Evaporation"; (2) "Experimenting with Evaporation"; (3) "Condensation and the Water Cycle"; and (4) "Understanding Cycles". Explains the mathematical applications of cycles. (YDS)

Introduces a unit on the brain and learning styles in which students become aware of their own cognitive styles. Studies the connection between the three senses--sight, touch, and hearing--and three types of learning styles--visual, auditory, and kinesthetic. (YDS)

Describes an activity for designing, building, and launching rockets that provides students with an intrinsically motivating and real-life application of what could have been classroom-only concepts. Includes rocket design guidelines and a sample grading rubric. (KHR)

Examines the cognitive supports that underlie achievement in science using a cultural historical framework and the activity setting (AS) construct with five features: personnel, motivation, scripts, task demands, and beliefs. Reports four emergent phenomena--science activities, the building of learning, meaning in lessons, and the conflict over…

Presents an inquiry-based science activity on pulse rate. Includes observations; developing a research question; constructing the hypothesis; designing the study; collecting, summarizing, and analyzing data; and interpretation stages in the activity. Presents information on how to use standards and benchmarks in this activity. (YDS)

Proposes a microbial mystery activity to test students' knowledge of human anatomy and their ability to identify microbes. Provides an opportunity for students to develop logical deductive reasoning. Includes national science education standards related to this activity, activity sheets with whole procedures, and Internet resources. (KHR)

Points out the importance of an understanding of a sense of scale and presents an activity that uses distance or time as a measure. The activity illustrates for students what the universe would look like at various scales. (DDR)

Discusses the New Orleans Center of Science & Mathematics, an alternative high school with an activity-based curriculum specializing exclusively in mathematics and science courses for inner-city students. (PKP)

Presents two studies that explore the connection between students' language use and how they participate in small-group science activities. Describes the range of language used by groups of students while working with materials in several elementary science classrooms. Examines how students use language in small groups to discuss, clarify, and…