In this study, the effect of conceptual-change-texts-oriented instruction to seventh-grade students' understanding of ecological concepts was investigated. Using information collected through interviews and related literature, the Ecology Concept Test was developed and administered to 58 elementary students in two classes of an elementary school…

This study examines the effects of teaching Linkage and Problem Translating Skills on students' problem-solving performance and their learning of the five cognitive variables namely, Concept Relatedness, Idea Association, Problem Translating Skill, Non-Specific but Relevant Knowledge and Specific Knowledge. Seventy three Grade 9 (Secondary 3)…

Describes an assessment tool called the 4P's (pretest, posttest, portfolio, and performance) designed to assess hands-on science. (ZWH)

This study compares the use of form and function analogy object boxes to more traditional lecture and worksheet instruction during a 10th-grade unit on human body systems. The study was conducted with two classes (N = 32) of mixed ability students at a high-needs rural high school in central New York State. The study used a pretest/posttest…

This article describes a university science course that integrates physics, education, and community outreach. The class both improves student mastery of science and teaching as well as addresses the university's mission to pursue research, education, and community service. The structure, implementation, and effectiveness of the course are…

The aim of this study was to determine the effects of problem-based active learning in science education on students' academic achievement and concept learning. In the study, both quantitative and qualitative research methods were utilized. Quantitative data were obtained via the pre/post-test, treatment-control groups test model. Qualitative data…

This study examined the impact of the 3-year implementation of a professional development intervention on science achievement of culturally and linguistically diverse elementary students. Teachers were provided with instructional units and workshops that were designed to improve teaching practices and foster positive beliefs about science and…

The aim of this study was to determine the effects of problem-based active learning in science education on students' academic achievement and concept learning. In the study, both quantitative and qualitative research methods were utilized. Quantitative data were obtained via the pre/post-test, treatment-control groups test model. Qualitative data…

Recognizes three major problems for use of student achievement in measuring teacher effectiveness: (1) great variability in initial student capabilities; (2) teaching to the examinations; and (3) regression effects. Pretests/posttests and outside observers were shown (in a pilot study) to avoid such problems. (DH)

This article reports the use of a computer-based collaborative learning instruction designed to help students develop understanding of image formation by lenses. The study aims to investigate how students, working in dyads and mediated by multimedia computer-assisted learning (CAL) programs, construct shared knowledge and understanding. The…

In a large introductory physics course, structured weekly journals (weekly reports) regularly encouraged students to ask questions about the material. The resulting questions were collected for one quarter and coded based on difficulty and topic. Students also took several conceptual tests during the quarter. The reports contained more questions…

We conducted two studies of beliefs about laboratory and everyday thermal phenomena. The first study identified concepts of heat energy and temperature held by adolescents, adults, and scientists. We found a classic separation of "school" and "everyday" knowledge in each population. We conducted clinical interviews with 37 middle school students,…

An evaluation of the Mathematics and Computer Assisted Remedial Teaching (MASCART) project in the Pre-Entry Science Course (PESC) at the University of Botswana focused on two questions: (1) Considering the conditions for successful implementation highlighted in the literature, has the implementation of computers in the PESC department been such…

Describes the use and analysis of pretests/posttests for assessing instructional consequences in introductory college chemistry. Results from two studies (N=58 and N=136) are discussed as well as the use of pretests/posttests in helping instructors to identify course topics which need attention and improvement. (Author/JN)

Quantitative outcomes from the Attitudes toward Science Inventory, as well as interview results, indicate that nonscience college majors have high anxiety levels in combination with low levels of motivation when confronted with science material. Further, these attitudes toward science change with exposure to introductory, science instruction with…