An experiment accompanied by a series of writing exercises that engage students in activities that characterize scientific research is described. The exercise emphasizes experimental design and data analysis over technical manipulation. Possible issues for discussion and opportunities for collaboration and peer review are discussed. (KR)

Three interactive computer-assisted learning programs are described. The use of tissues from freshly killed frogs is simulated, including the isolated sciatic nerve, the sciatic nerve-gastrocnemius muscle, and the in situ heart. (KR)

A tissue culture experiment that does not require elaborate equipment and that can be used to teach sterile technique, the principles of animal cell line maintenance, and the concept of cell growth curves is described. The differences between cancerous and normal cells can be highlighted. The procedure is included. (KR)

Activities that use dandelions to show the phenomena of geotropism and autotropism are described. Directions for collecting the stalks and observing the gravitropic response are included. The topics of lag time and bending rates, autotropism, growth rate changes, presentation time, and gravity detection are discussed. (KR)

Describes the Malaysian Education System and the reform work on the secondary school science curriculum that began in 1967. (PR)

Twenty-six junior high school students with learning disabilities studied two science units via an activity-based, inquiry-oriented approach or a textbook approach. Students performed higher on immediate and delayed unit tests when they had learned by the inquiry approach, and reported a preference for this approach. Vocabulary acquisition was…

Begun in 1989, the LabNetwork is a telecommunications network for secondary science teachers and their students. Summer workshops provide teacher training in the network computer software and teaching methods based on student science projects. The development of a collaborative network-based "community of practice" is described. (SV)

Describes microfossils and explains how they can be collected from shale and limestone. Explains how to set up an interest corner in a classroom. (PR)

A third-semester physics course that covers the topics of atomic physics, the theory of relativity, and nuclear energy is described. Activities that include the phenomenon of radioactivity, field trips to a nuclear power plant, a simulation of a chain reaction, and comparing the size of atomic particles are presented. (KR)

The relationship between specific gravity, salinity, and density in brine solutions is investigated. Students construct hydrometers to reinforce concepts learned in oceanography. Background information, salt requirements for the unknowns, directions, and reproducible worksheets are included. (KR)

Evidence is offered that the Levels of Attainment in Science in Britain's National Curriculum will be achieved by only the top 20 percent of 14 and 16 year olds, rather than 50 percent as planned. New teaching skills are presented as ways to alter this prediction. Success in improving standards is demonstrated in three examples. (Author/KR)

Recommended are positive steps teachers can take to enhance access and motivation for students. Stressed is the idea that paying attention to the needs of girls as individuals with differing interests and expectations, and valuing their contributions should enhance instruction for all students. (Author/CW)

The relationship between concept mapping and comprehension was investigated in conjunction with science instructional laboratories. Measured were student skills and aptitudes applying aptitude treatment interaction procedures to investigate interactions between a concept mapping treatment and student aptitudes. (KR)

Proposed is a scheme for concept development in teaching the topic of energy. Levels within the scheme are described, as well as their interrelationships and their relation to the student's own world. (KR)

Provided is an outline of laboratory activities involving a full year of student investigations of natural-resource ecology and an example of an activity, "Home Range Analysis." Objectives, background information, key vocabulary, skills, materials, procedures, extension activities, and evaluation of this three-lesson activity are discussed. (CW)