Examines features of science experiments that make them interesting to middle school students (n=59 seventh graders). Compared a model of interest in learning with the reasons students gave for liking experiments. Latent partition analysis was used to derive an empirical model from characteristics of interesting science experiments. (PR)

Discusses traditional school demonstrations and experiments in hydrotropism. Explains that these experiments seem to "prove" hydrotropism, but yet most botanists reject hydrotropism. Teachers continue to teach the concept because it is logical and the experiments are simple. (PR)

Graduate teaching assistants (GTAs) in the sciences are a common feature of U.S. universities that have a prominent mission of research. During the past 2 decades, increased attention has been paid to the professional development of GTAs as instructors. As a result, universities have created training programs to assist GTAs in selecting…

This qualitative study examined the role of discourse (verbal elements of language) and Discourse (nonverbal elements related to the use of language, such as ways of thinking, valuing, and using tools and technologies) in the process of group knowledge construction of mechanical engineering students. Data included interviews, participant…

We have developed a laboratory course that demonstrates how evolution can be taught as a participatory, investigative science at the undergraduate college or advanced secondary high school level. The course emphasizes the applied importance of evolution to areas such as medicine and agriculture. Because many instructors face budgetary or other…

This study investigated the chemistry laboratory classroom environment, teacher-student interactions and student attitudes towards chemistry among 497 gifted and non-gifted secondary-school students in Singapore. The data were collected using the 35-item Chemistry Laboratory Environment Inventory (CLEI), the 48-item Questionnaire on Teacher…

The National Science Foundation and others have made compelling arguments that research be incorporated into the learning of undergraduates. In response to these arguments, a two-hybrid research project was incorporated into a molecular biology course that contained both a lecture section and a laboratory section. The course was designed around…

It is hard and getting harder to strike a satisfying balance in teaching. Time dedicated to student-generated models or ideas is often sacrificed in an effort to "get through the syllabus." I describe a series of RNA interference (RNAi) experiments for undergraduate students that simultaneously explores fundamental concepts in gene regulation,…

Laboratory exercises constitute an important part of chemical and biochemical courses at the university level. Nevertheless, students frequently are insufficiently prepared for the practical work, which often reduces their work to the level of a technician. A system designed to motivate students to study prior to the laboratory exercise was…

This article describes the use of the "glabrous1 (g11)" mutant and constitutively active "(CA)-rop2" transgenic plants of "Arabidopsis thaliana" in teaching genetics laboratory for both high school and undergraduate students. The experiments provide students with F[subscript 1] and F[subscript 2] generations within a semester for genetic and…

For more than 50 years, the International Association for the Evaluation of Educational Achievement (IEA) has been conducting comparative studies of educational achievement in a number of curriculum areas, including mathematics and science. TIMSS 2011 represents the fifth cycle of the Trends in International Mathematics and Science Study (TIMSS),…

The first (exploratory) phase of the Learning in Science Project focused on science teaching/learning in the Form 1 to 4 level (ages 10 to 14) and sought to identify problems and difficulties in several areas. Provided in this paper are comments obtained during structured/unstructured interviews (from students, ex-students, teachers, headmasters,…

This document provides descriptions of lessons, activities, and laboratory experiments to be used in a course on basic laboratory techniques for students in biology and small animal care. These learning experiences are designed to be completed during one class period daily for approximately 70 days per semester. (It is assumed that this would…

This document is based upon the premise that with the help of professional scientists on university campuses, in industrial settings, and in private practice, school systems can meet head-on the unprecedented criticism currently being directed at public education and can develop exemplary science programs. This paper is a case study of a program…

This study was designed to: (1) determine the extent of the availability of physics laboratories in Kenya's secondary schools; (2) assess the quality of the laboratories in terms of how well they are equipped, how much it costs to equip them, and how often materials are purchased; (3) assess the quantity of laboratory work done in terms of time…