This study examined the differences in middle school students' (n=287) perceptions of science activities among three instructional approaches: (1) lecture-worksheet; (2) traditional laboratory; and (3) problem solving. Chi-square analysis of questionnaire responses indicated that, on seven of the eight questions, students responded more positively…

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)

Lack of student use of critical thinking operations can lead to faulty argumentation in discussing societal issues. Presents 12 common fallacies in student argumentation and discusses their implications for science education. (Contains 51 references.) (MDH)

Explores high school student's postinstructional knowledge about mass, volume, weight, and density in terms of what students need to know to successfully solve academic physical science problems. Presents definitions of the concepts, discusses hypothesized knowledge deficiencies, and suggests implications for instructional design. (Contains 31…

Argues that, in all subject areas, assessment trends are moving toward teaching concepts rather than teaching facts, and toward application of information and skills. Discusses how rubrics are helpful in specifying what criteria student performance and proficiency levels should be evaluated. Offers three rubrics (problem solving, group oral…

Focuses on issues related to safety, education, and entertainment in classroom demonstrations. Explains to preservice teachers how to conduct a demonstration to motivate students. Lists several elements that should be included for a successful demonstration which include purpose, planning, repeatability, simplicity, safety, visibility, and…

Briefly summarizes methods of presenting laboratory information. Suggests that approaching lab problems requires a combination of methods structured into a problem-oriented learning experience. Focuses on the relationship of the gloxysome to the chloroplast and the steps involved in solving the problem. (DDR)

"Lettuce Learn Math" is an interdisciplinary program that has effectively linked a small-scale agricultural production system to a sixth-grade mathematics and science curriculum. The mathematical concepts and skills, including measurement and geometry, taught in this project met and often exceeded the standards set by New York state for…

Students value participation in meaningful research. They feel empowered when they effect positive change in their communities. They also have a strong affinity for frogs and toads, although they vehemently deny this at the start of the school year. In addition, most students recognize the value of using computer technology to solve world…

Undergraduate biology programs are currently undergoing reform to involve students in biomedical research. Engaging students in more active, hands-on experiments allows students to discover scientific principles for themselves, and to develop techniques of critical thinking and problem solving. This models the world of real scientific research,…

Understanding the nature of science is even more important than mastering its details, says Alan Leshner, Chief Executive Officer of the American Association for the Advancement of Science, in an interview with Educational Leadership. In this article, Leshner discusses the controversy about teaching evolution, and he asserts that demands to…

An action research study investigated how the multiple tasks found in WebQuests facilitate fifth-grade students' literacy skills and higher order thinking. Findings indicate that WebQuests are most successful when activities are carefully selected and systematically delivered. Implications for teaching include the necessity for adequate planning,…

An integrated learning object, a web-based inquiry environment "Young Scientist" for basic school level is introduced by applying the semiosphere conception for explaining learning processes. The study focused on the development of students' (n=30) awareness of the affordances of learning objects (LO) during the 3 inquiry tasks, and their ability…

The aim of this study was to investigate the effectiveness of a problem-based learning (PBL) approach in a physical chemistry laboratory course. The parameters investigated were students' attitudes towards a chemistry laboratory course, scientific process skills of students and their academic achievement. The design of the study was one group…