Presents an activity on measurement and points out the importance of units which, in most cases, are omitted by students. Focuses on measurement in informal settings, indirect measurement, ratio and scales, and surface area to volume ratio. (YDS)

Presents a science activity on modeling a bridge to teach about the forces of tension versus compression. The activity is designed for middle school students. (YDS)

Introduces gall-making insects and explains gall development. Explains how to bring galls into the classroom and conduct experiments. Suggests using gall systems to introduce students to the concepts of genetic control, biodiversity, plant and animal development, species interactions, biodiversity, and the flow of energy through the food web. (YDS)

Discusses the importance of observation in science education, how to foster students' observation skills in the classroom, and how to facilitate what they observe when learning. Includes a list of components of good scientific observing. (KHR)

Presents activities that use the Fibonacci sequence of numbers in nature. (YDS)

Suggests using the informal experiences students have through extracurricular activities such as music lessons to design a curriculum related to sound that encourages active student participation and learning. (DDR)

Describes how to use newspapers and newsmagazines as available science-related resources in the science classroom. Provides teaching strategies to foster student thinking and assess student understanding. (KHR)