Proposed is a scheme for concept development in teaching the topic of energy. Levels within the scheme are described, as well as their interrelationships and their relation to the student's own world. (KR)

Presented is an experiment where the concentrations of three metal ions in a solution are simultaneously determined by ultraviolet-vis spectroscopy. Availability of the computer program used for statistically analyzing data using a multivariate linear regression is listed. (KR)

Two geometry problems generated from a design problem involving a shuttle return mechanism in a weaving machine are presented. The solutions to these problems are detailed. (CW)

Surveys research on middle schools to discuss the best instructional strategies for this level. Discusses prevailing and preferred instructional practices regarding mode of presentation, instructional format, use of textbooks and materials, nature of classroom activities, and questioning, critical thinking, and problem solving. (SR)

Children collaborated in planning imaginary errands with novice peers, trained peers, or untrained adults. Collaborative planning of dyads with trained peers and with adults was equally sophisticated. Children who worked with adults planned better in posttests than those who collaborated with trained peers. (BC)

Parents can encourage their children to become better mathematical thinkers. The article describes how to assist children with problem solving and presents activities that develop specific skills (estimating, counting, sorting, volume, fractions, multiplication, money, story problems, patterning, averaging, computation, magic squares, plane…

Gives examples of, and a rationale for, using estimation in the classroom daily. Includes instructional tips and strategies to enhance estimation activities. (MKR)

Asserts that students need opportunities to solve problems by making concept connections from many disciplines. Integrating mathematics and social studies can help. Includes 20 class activities and a chart recommending which grade levels are most appropriate for each activity. (CFR)

Speech language pathologists providing collaborative-consultative services are urged to utilize a student skills framework, such as that of the MEGASKILLS approach, which focuses on developing students' confidence, motivation, effort, responsibility, initiative, perseverance, caring, teamwork, problem solving, and common sense. (DB)

A study with 57 second graders identified some logically irrelevant transformations that children considered relevant in relation to the weight of an object. Two logically relevant transformations, movement upward and movement downward, were irrelevant to the subjects, whether texture, continuity, temperature, and darkness were generally…

Presents the experiences of a Russian mathematician teaching in Russian and American Universities. Topics discussed include what was taught, the importance of grades, cultural and parental factors, mathematicians' attitudes toward teaching, and some problems in elementary mathematics. (MDH)

Presents an analysis of the question in the title which involves a discussion of fractions, number theory, and probability through modeling, exploring, and other mathematical connections. (MKR)

Discusses an activity which models the building of a tunnel by ants using the definitions of derivative and indefinite integral from calculus. Includes a discussion of reasonableness and interpretation of the problem. (MKR)

Proposes a science competition that stimulates student thinking and creativity in which groups of 4 students solve as many problems as possible in 30 minutes. Problems require students to make tools using only the materials provided. Provides materials in a sample tool kit, competition rules, and sample problems. (MDH)

Suggests that disinterest in physics occurs because students and adults can apply everyday concepts to solve problems without understanding the underlying physics concepts. Proposes Wagenschein's Exemplary-genetic Method to teach physics and illustrates the method with examples taken from history. (MDH)