Argues on the basis of Piaget's theory that self-regulated cognitive activity of the student plays a crucial role in the construction of logical reasoning strategies used in testing hypotheses. Proposes six sequences in the development of hypothesis-testing conceptions and provides alternatives. Also distinguishes three families of teaching…

Offers the opinion that the creative and imaginative dimension of chemistry can be added in chemistry instruction through the acknowledgement of ambiguity in experimentation and science history. (CS)

Described are two interactive computer-assisted-instruction (CAI) programs that were developed for use in quantitative analysis and in general chemistry. The purpose of these modules is to help students learn to calculate the points along a titration curve for the titration of an acid with a strong base. (Author/DS)

Reported is a study involving a modification of the mastery learning technique designed to determine the effects of general remediation on the achievement of the mole concept by 99 ninth-grade physical science students. Results of one way analysis of covariance did not indicate a significant difference in mean scores between treatments. (DS)

Cites results of a study that assessed the effects of diagnostic prescriptive teaching strategies and locus of control on various cognitive levels of science achievement of college biology students, also examined the interaction between the instructional strategy and students' locus of control. Students' attitudes were also examined. (CS)

The individualized learning model, discussed in this article, uses an efficient feedback mechanism which incorporates an innovative student evaluation program and a unique system of classroom management. The design provides a model for monitoring student progress. (Author/SA)

Investigated the interaction between science teaching strategy (semideductive, structured inductive, hypotheticodeductive) and selected learner characteristics (Piagetian cognitive level and field independence) in terms of student achievement in science. Achievement of undergraduate elementary education majors (N=77) in a general science program…

Described is a resource idea developed for the teaching of oceanography to junior high students. Sand is studied to help make the study of beaches more relevant to students who may have never seen an ocean. Sand samples are brought into the classroom from various coastal cities, then analyzed and compared. (Author/DS)

Describes how history of science is taught in these physical science courses: introductory astronomy for nonmajors; physical science for liberal arts and early childhood education majors; an algebra-based physics course for biology and premedical students; history of science emphasizing technology for liberal arts and business majors. (CS)

Described is a three-phase model for teaching problem solving to the middle school student. Phases include cue attendance, thinking aloud, and developing diagrams of steps to solutions. Because middle school students are in a transitional period in their cognitive processes, implementation of problem solving skills seems appropriate. (Author/DS)

Describes experiments which can be completed in five four-hour laboratory sessions, including two synthesis (alpha-phenylbutyric and alpha-phenylbutyric acid anhydride) and determining the absolute stereochemistry of secondary alcohols using the synthetic products. (JN)

Describes an experiment as an alternative to undergraduate experiments limited to high temperature metal systems or lower temperature systems involving objectionable or unstable materials. Lists six advantages of the experiment. (Author/JN)

Describes two elementary science curriculum materials. Reading about Science Skills and Concepts is a program containing a series of seven supplementary high-interest low-level science readers for upper elementary and middle school students. Beginning Everyday Science Early outlines why teachers should teach science to young children, teacher…

Discusses two major misconceptions about reading shared by many teachers, students, and parents: reading instruction should take place in the elementary schools, and only those students having problems need help in reading. It offers suggestions for integrating the teaching of reading skills with the teaching of physics content. (SK)

Discusses single-board microcomputers which are designed primarily for data acquisition and control. Directed toward individuals with little or no hands-on experience with microcomputers, this article gives references, among others, for reading about and purchasing microcomputers. (SK)