Washington, D.C. has been associated with many distinguished chemists. Since its incorporation in 1802, a steady stream of chemists have made impressive contributions to chemical science, health, information science, minerology, food science and other areas. The majority of these chemists have been associated directly or indirectly with the…

The purpose of this study was to investigate the effects of the use of hand-held calculators on the teaching of decimal arithmetic in seventh and eighth grade pre-science units. In particular, the effects of calculators on pencil and paper computational skills and on conceptual understanding were studied. The study consisted of a pre-unit…

The relative apparent difficulty of physics concepts at the grade 11 and 12 level was examined using a questionnaire survey addressed to all physics teachers within the providence of British Columbia. The physics courses were described using 22 concepts to cover the Physics 11 course and 30 concepts to cover the Physics 12 course. Subjects were…

This issue, number 40 in the series, is divided into two sections: (1) science activities in Britain, and (2) overseas and international activities. Presented in a newsletter format, numerous topics of interest to secondary school science and mathematics educators pertaining to British education are presented. Included are announcements for…

The nature of generic teacher competencies is described with specific reference to competencies endorsed by the Georgia State Department of Education. Several sources of generic competencies for middle school teachers are also identified and discussed. In addition, five generic competencies for science teachers are presented. A synthesis of middle…

Intended primarily for the secondary level, this manual presents 35 laboratory and field activities in marine science. Also included are chapters which cover field trip logistics, marine science centers, films, and reference materials. Typical amonq the lessons are "Charting Local Current Systems,""Salinity,""Living World Within a…

The use of an advanced organizer (a generalizable, encompassing concept) prior to an individualized instructional sequence in a self-paced, audiotutorial learning format was accompanied by gains in individual unit achievement and in retention by disadvantaged biology students. Although behavioral objectives generally were shown to make no…