Performance objectives are stated for each of the secondary school units included in this package of instructional guides prepared for the Dade County Florida Quinmester Program. All three units are concerned with chemistry: "Applied Chemistry 1,""Chemistry of Biology," and "Matter and Its Changes." The last unit…

Performance objectives are stated for the unit describing a course in aeronautics with emphasis on pre-flight facts and the physical principles involved in flight. Prepared for the Dade County Florida Quinmester Program, it offers an introduction to navigation, an opportunity to construct a flying test model and, as an optional learning…

Instructions for the construction of the following apparatus for the secondary school science laboratory are included in this issue of the Scottish Schools Science Equipment Research Centre Bulletin: a cheap water purifier using an expendable deionizer can; a simple amplifier suitable for detecting or displaying D. C. currents of 1 microamp or…

This report describes the activities of a UNESCO consultant who visited Kenya, Tanzania, Zambia and Malawi for the purpose of assisting local education agencies in the Biology Teaching Pilot Project. The consultant's report briefly summarizes the status of the School Science Project (SSP) in these East African countries. Also listed are the…

Ten criteria for use in assessing the emphasis on environmental education in textbooks and similar resource materials were developed and given to 30 members of the Australian Conservation Foundation Education and Training Committees throughout the country. Each rater applied the criteria to three chapters of a biology textbook "The Web of…

A publication of the Instructional Objectives Exchange, this booklet contains instructional objectives collected from educators or formulated at the Exchange. In addition, up to six measuring techniques suitable for assessing attainment of each objective are included. By exchanging objectives, duplication of developmental activities will be…

Examples of errors in statements of physics concepts found in textbooks at all levels are cited and discussed. The author states: "There seems to be a tendency to be deliberately careless in textbooks for the lower levels, apparently in an attempt to be understood more easily." Oversimplifications identified as errors are presented with…

Results of studies by the Office of Education carried out in 1948-49, 1960-61, and 1969-70 are compared for total enrollment in grades 9 through 12 and for total enrollment in selected science and mathematics courses in grades 9 through 12 in U.S. public secondary schools. The findings showed that the total number of public secondary school…

This newsletter is composed of brief notes in the various areas of science. Biology Notes include hazards of tasting Phenylthiocarbamide in laboratory experiments, the use of Albustic and Clinistix test papers for protein and glucose determinations, the measurement of the respiratory quotient, and the construction of a simple respirometer. Physics…

Most of the activities suggested in this trial version of the Genetics unit produced by the Australian Science Education Project rely on second-hand data, although one of the introductory activities suggested is based on results of a mouse breeding experiment. The unit is, therefore, expected to be suitable only for students who are capable of…

STUDENTS IN EXPERIMENTAL LARGE GROUP-SMALL GROUP CHEMISTRY CLASSES WERE COMPARED TO STUDENTS IN CONVENTIONALLY ORGANIZED CHEMISTRY CLASSES FOR GAIN IN KNOWLEDGE OF CHEMISTRY AND OTHER LEARNING OUTCOMES. THE 1,241 STUDENTS INVOLVED IN THE INVESTIGATION WERE ENROLLED IN 14 URBAN, SUBURBAN, AND RURAL SCHOOLS. EXPERIMENTAL CLASSES RANGED IN SIZE FROM…

FACTORS ASSOCIATED WITH ACHIEVEMENT IN SCIENCE BY DISADVANTAGED JUNIOR HIGH SCHOOL STUDENTS ARE IDENTIFIED. STUDENTS WITH IQ SCORES OF 97 OR HIGHER WERE CLASSIFIED AS EITHER SUCCESSFUL OR UNSUCCESSFUL ON THE BASIS OF SCORES FROM A GENERAL SCIENCE TEST. DATA FROM STUDENT INFORMATION SHEETS, INTERVIEWS WITH PARENTS, AND STUDENT CUMULATIVE RECORDS…

This activity is designed to use a collection of marine bivalve shells. From these shells, students can determine approximate ages of the shells, compare weather conditions to shell ages, and learn problems of this technique. (RH)

This project was concerned with the effects of teaching activities in lessons where self-paced materials were used; with associations between teaching activities and cognitive and affective outcomes; with relationships between teachers' beliefs about teaching and teaching activities and pupil outcomes; with pupils' perceptions about a self-paced…

Data of a 1970 research project regarding student achievement in science of 36 Australian secondary schools were reanalyzed to examine the effects of schools on science achievement for six schools rating highest above expectation and six schools rating lowest below expectation. Schools scoring above expectation appeared to have good accommodations…