We report a practical home-made microcentrifuge to be used for teaching purposes. It was made using a salad spinner and two polymerase chain reaction (PCR) tubes racks. It can accommodate 2 standard size 96-well plates or 24 strips or up to 192 microfuge tube. The centrifuge is hand-operated and is ideal for short spin down purposes. (Contains 3…

INFORMATION FOR TEACHERS AND PRINCIPALS IMPLEMENTING BIOLOGICAL SCIENCE CURRICULUM STUDY (BSCS) BIOLOGY IN THE SCHOOL PROGRAM IS INCLUDED IN THIS GUIDE. THE RATIONALE AND CONTENT OF THE BSCS VERSIONS ARE EXPLAINED. PHYSICAL FACILITIES, LABORATORY EQUIPMENT, AND LABORATORY MATERIALS THAT FACILITATE TEACHING BSCS BIOLOGY ARE ANALYZED. ADMINISTRATIVE…

Discussed are two studies undertaken by the Commission: The Cost of Material Study and The Science-Mathematics S"udy. Early plans in The Cost of Material Study were to specifically tabulate costs of introducing and maintaining each of eight "new" science courses in elementary and junior high schools. This was abandoned in favor of…

DESCRIBED ARE CURRICULUM MATERIALS PREPARED BY 22 ELEMENTARY AND SECONDARY SCIENCE COURSE IMPROVEMENT STUDY GROUPS. AN INTRODUCTORY SECTION DEALING WITH THE NEW CURRICULUMS DISCUSSES THE FOLLOWING TOPICS--(1) CHANGES IN THE ACTIVITIES AND RESPONSIBILITIES OF TEACHERS AND STUDENTS, (2) COURSE CONTENT AND ORGANIZATION, (3) CURRICULUM MATERIALS…

A significant alternative to the traditional text-based approach to elementary science has been represented by the Science Curriculum Improvement Study (SCIS). Although the literature documents the process of the investigative approach, greater utilization of available programs and support from teachers are not evidenced. This investigation was…