Describes the Assessment of Performance Unit (APU) Science project. Discusses the findings including perceptions of problems, procedural understanding, control of variables, and measurement strategies. Suggests a change from traditional learning strategies to more student-centered ones. (YP)

Examined the extent to which students' alternative conceptions changed as a function of age. Reports that many alternative views remain intact throughout the school years. Provides several suggestions for teaching and research within the context of a neoconstructivist view of learning. (Author/YP)

Presents an activity in which students collect and organize data from a real-world simulation of the scientific concept of half life. Students collect data using a marble sifter, analyze the data using a graphing calculator, and determine an appropriate mathematical model. Includes reproducible worksheets. (MDH)

Making books is a creative and enjoyable way to integrate science with other subjects, to extend learning, and to make science relevant to children's lives. Presents successful book-making techniques and procedures. (PR)

Contends that a large segment of our nation's population is underserved in mathematics and science education. Some teaching strategies suggested to increase mathematics and scientific literacy among all students include making wrongs right; vary learning and allow group work; overcome language barriers with math and science; and respect different…

Demonstrates a laboratory to teach the concept of moment of inertia in which students are asked to identify four objects of equal mass sealed in unopenable containers by identifying the mass distribution of each object. Gives instructions to build an instrument to determine relative distribution of mass. (MDH)

Investigates the use of collaborative learning groups in a physical science course designed for elementary education majors (n=54). Data for the study were 20 video-taped laboratory sessions, the instructor's journal, and the students laboratory reports. Among the conclusions is that the collaborative science laboratories provided insightful…

Concept mapping with "Learning Tool," a computerized mapping program, was used to assess changes in the content and organization of 17 preservice teachers' concept maps for the topic of effective teaching. This study illustrates how concept mapping can be useful in describing students' evolving constructions of knowledge in a particular…

Describes the "SemNet" software and some of its uses as an educational and research tool, with emphasis on the similarities and differences between concept mapping and semantic networking. (PR)

Study (n=62) at suburban community college tested method of conceptual change in which treatment students worked in small cooperative groups on tasks aimed at eliciting their misconceptions so that they could be discussed in contrast to scientific conception that had been taught in direct instruction. Treatment group had significantly lower…

Study examined the influence of an intensive chemical demonstration workshop on fostering pedagogical content knowledge growth among science teachers identified as novice chemical demonstrators (n=8). The two-week workshop was designed around four training elements considered important for effective teacher inservicing: theory, modeling, practice,…

Teaching strategies associated with a conceptual change model of science teaching were examined in a study of seventh-grade life science teachers (n=13). Greater use of conceptual change teaching strategies was associated with use of the special instructional materials, not with the training. Students in classes where teachers were provided with…

Presents an activity that models the changes in the concentration of carbon dioxide gas in the atmosphere during the last 200 years as determined from glacial records. (PR)

A new classification of rocks that requires no tools other than a hand lens and that is both comprehensive and informative is described. Each of the three main rock groups is treated in two-dimensional, rectangular charts with additional appended boxes that provide optional mineralogical and textural terms that can be used in rock names. (PR)

Describes an activity where students generate a plan and test their ideas on trying to cope with a small oil spill. (PR)