Reports a study that tracks the changes in children's ideas about science and scientific concepts through the use of interviews and questionnaires. Students respond to seven questions about science learning, scientists, and their future relationship to science. (DDR)

Explains the work of the Global Learning and Observations to Benefit the Environment (GLOBE) program which is an international science and environmental education curriculum program that enables school children to learn about the environment by taking scientific measurements of their natural surroundings and sharing their data with scientists via…

Introduces chemistry laboratories in which students have the opportunity to conduct laboratory projects in multiple sessions that promote planning, thinking, technical performance, and responsibility. Defines the process of experimentation and its applications to science laboratories and describes successful project applications. (YDS)

Presents a science activity designed to involve students in experimental procedures such as data collection and analysis by extracting peroxidase from plant sources. (YDS)

Introduces a paleontology curriculum that focuses on the concepts of observation and inference, setting up an experiment, collecting data, and developing and testing a hypothesis. Features units such as Nature of Science, Paleontology of Florissant, and Evolution. (YDS)

Describes a lesson plan on alien invasions to introduce students to the principles of genetics. Discusses the history of Gregor Mendel, dominant and recessive traits, offspring, and mutations. (YDS)

Presents an exercise that gives students a real feeling for experimental errors and demonstrates the importance of frequent repetition and averaging. (JRH)

Assessed the science process skills and the Piagetian development level of about 90 secondary school students in years 7, 8, and 9. Found only a simple two-level hierarchy (basic and integrated) of process skills. Found considerable overlap between science process skills and Piagetian development level. (28 references) (Author)

Describes a science program (Saturday Science) designed to provide learning experiences that are thematic and stress critical/creative thinking as well as development of science process skills for elementary, middle, and junior high students. (ZWH)

Describes an open-ended activity in which students try to determine the factors that contribute to an unusual chemical reaction. Uses a case study approach to show students how the presence of chlorine in tap water can interfere with a pH indicator. Includes assessment guidelines and extension activities. (WRM)

Describes the construction and use of a shell-discovery kit for students to employ in actively investigating the natural world. (WRM)

Describes a laboratory experience for upper-level science students that provides a hands-on approach to understanding the basics of experimental physiology. Students design an experiment to determine the relative importance of dilution of plasma proteins in the overall renal excretory response following volume expansion with intravenous saline.…

Describes the Connecticut Academic Performance Test (CAPT) and explains the reasons for a curriculum change. Introduces CAPT-style labs which require students to identify a problem, ask questions, develop a hypothesis, design and conduct an experiment, analyze data, and draw conclusions. (YDS)

Examines the science achievement outcomes for different subgroups of students using different assessment formats designed to measure the level of achievement of the National Science Education Standards. Assessments included a multiple-choice test, a written open-ended test, a hands-on lab skills test, and a hands-on full investigation. (Author/SAH)

Discusses using web sites to develop active inquiry lessons that mimic some of the tasks and thought processes scientists use everyday. The exercises available at the web sites are designed to develop science process skills and convey basic course content. Exercises stress the interactions between the ocean and the atmosphere. (Author/SAH)