Computer-assisted genetics instructor (CAGI) is a database program to help students and teachers identify conceptual weaknesses, provide interactive drill to master problem solving, and reduce teacher tutorial time. Results of a comparison of users and nonusers indicates that CAGI users averaged between 6 and 10 points higher on hour exams than…

Presents two techniques involving simple and inexpensive demonstrations: (1) explains how pressure inside cells gives them mechanical strength, and (2) shows how water can be pulled up stems. Both can be adapted to suit a variety of levels of instruction. (PR)

Describes the use of role playing and skits for instruction in protein synthesis. (PR)

Provides background information on DNA fingerprinting, and describes exercises for introducing general biology students at the high school or college level to the methodology and applications of DNA fingerprinting. (PR)

Describes how lectures, laboratories, and role playing can be used to introduce students to the importance of water quality of water used for plant growth. (PR)

Describes an activity in which students examine hypothetical exposure to toxins by being showered by different colored pieces of confetti over several visits to exposure sites. Students record quantities of confetti that stick to packing tape. Colors correspond to different toxins posing different health problems. Students process their findings…

Presents the following guidelines to consider before, during, and after hands-on inquiry: (1) plan and prepare; (2) create problem intrigue; (3) give students the responsibility of solving the problem; (4) offer feedback and guidance; (5) debrief; and (6) anticipate, prevent, monitor, and adapt. (PR)

Presents an activity in which students construct model hot air balloons to introduce the concepts of convection current, the principles of Charles' gas law, and three-dimensional geometric shapes. Provides construction and launching instructions. (MDH)

Describes the teacher's guide made up of 125 student activities encompassing 1 year of high school physics instruction called Physics Resources and Instructional Strategies for Motivating Students (PRISMS). The learning cycle of each activity includes three phases: exploration, concept introduction, and concept application. Provides exploration…

Describes teaching strategies, including science activities, for challenging students' misconceptions about turtles and helping limited-English-proficiency students enhance their language proficiency. (PR)

Presents reviews of literature for the following areas: perceptions and attitudes; curriculum and instruction; women and minorities; and the physical environment, educational technologies and support services. (PR)

Two approaches for identifying, evaluating, and disseminating materials are discussed. One is the National Diffusion Network and its Program Effectiveness Panel, and the other is the Committee on Education and Human Resources, a new interagency effort with potential for examining a large body of generally underutilized mathematics and science…

A sample of 14 college and 8 high school biology textbooks were evaluated to determine whether they provided accurate and adequate descriptions and examples of scientific thinking. The authors contrast their views of the nature of scientific thinking with those of the textbook authors on the concepts of hypothesis, theory, law, and principle. (MDH)

Describes having students write lab reports that concentrate more on writing and independent thought. Students take the role of scientists writing about their findings for publication. The teacher acts as a journal editor, reading the reports and either accepting them for publication or suggesting ways for improvement. (PR)

Female elementary school teachers (n=42) were asked to identify the scientific skills that each student in their class displayed to determine differences in their perceptions of the scientific ability of girls and boys. Teachers perceived boys to be more cognitively intellectual and girls to be more cognitive process in their scientific abilities.…