An educational technique to calculate the lifetime of a comet using software-generated random numbers is introduced to undergraduate physiques and astronomy students. Discussed are the generation and eligibility of the required random numbers, background literature related to the problem, and the solution to the problem using random numbers.…

High school biology students (n=261) completed 1 of 4 versions of the hypermedia courseware, "The Ecology and History of the Great Smoky Mountains National Park." Analysis failed to detect any statistically significant differences in achievement among the four groups, but did detect a significant difference among student ability levels. Supports…

Presents graphic means of representing deductive proofs in a sentential system of symbolic logic. Provides students with performance data following a description of the rule set and the working backwards method. Shows that one interface design is superior to others in respect to working backwards. Draws some general conclusions concerning the…

Describes a simple 16-item instrument, the Propositional Logic Test (PLT), that is based on Piagetian theory and a study that explored the use of the PLT in diagnosing student misunderstandings. Analysis of individual student responses revealed a number of systematic errors in interpreting the logical operations in the PLT items. (Contains 23…

Suggests that the dearth of computer science instruction in secondary schools may be due to a lack of teacher and administrator training. Proposes a program to retrain high school teachers of science and mathematics to teach computer science. The program would run two summers and contribute to a master's degree. (Author/AIM)

Describes several exemplars of software that emulate and incorporate machine-supported aspects of cognitive apprenticeships in science and mathematics. Concludes with an evaluation of software against cognitively guided principles and with a summary of the difficulties associated with creating and implementing machine-supported apprenticeships.…

Reports on a pilot program studying the use of computer software to enhance spatial skills presumed to be related to success in calculus. Addresses the effects of such a program on female and minority students. Results indicated that the combined effects of the computer, drawing and drafting, and gender variables explained 31% of the variance in…

Provides the results of a survey of science teachers (n=635) regarding the status of computer use and professional development needs related to the use of computers in classrooms. Results indicate that 91% of the classrooms have computers. Professional development needs are categorized by groups: non/past users, novices, and users/experts. (DDR)

Examines 92 Canadian secondary school teachers for their familiarity with categories of educational computer applications. Reports relationship of variables such as teacher age, gender, subject area specialization, and teaching experience as they related to knowledge and use of computers. Lists 16 references. (YP)

Investigates using computer spreadsheets in math classes. Describes current spreadsheets on the market. Summarizes how the spreadsheets work and provides information to build a template to find function maximums and minimums. Lists step by step instructions. (MVL)

Provides an overview of five earth and space science CD-ROMs and their potential contribution to learning mathematics and science. The software are "Welcome to the Planets"; "GeoMedia 2, Interactive Multimedia CD-ROM on Global Environmental Change"; "Mars Educational Multimedia"; "Redshift Multimedia Astronomy"; and "Expert Astronomer."…

Describes how two middle school science teachers approached the integration of interactive videodisc into their science teaching and curriculum. (Author/MKR)

The intent of this study was to investigate the impact of introducing computerized means, mainly simulation and the Internet, on teaching and learning electronics in Israeli high schools. Computers in electronics studies are, at the same time, part of the subject matter learned and a means for teaching and learning. Data were collected through…

Students from five high schools participated in a 2 to 4-week microcomputer based laboratory (MBL) physics curriculum in two groups. One group completed the curriculum entirely online, and the other completed the same curriculum in a traditional classroom setting. Variables were collected to predict student success on a post-unit measure of…

Explains a unified approach to using the computer as a teaching tool for helping students discover concepts and principles involved in geometry. Describes the Geometric Supposer series which allows students to develop constructions and measure angles, areas, and circumferences. States that supplemental materials are also available. (RT)