Twenty studies of the effects of teacher questions on student achievement were reviewed. Internal validity of experiments and integrity of treatments were less adequate than population and ecological validity. Whether teachers used predominantly higher cognitive or predominantly fact questions was found to make little difference in achievement.…

Examines the thermal decomposition of sodium bicarbonate to sodium carbonate. Encourages students to predict the end products and to use the stoichiometric results to determine if their predictions are correct. (MVL)

Provides two demonstrations: (1) electrolyte migration of ions using colored ions which cross a strip of gelatin allowing for noticeable migration; and (2) photochemical reduction of Fe+3 by the citrate ion. Points out both reactions can be done in a Petri dish using common lab materials. (MVL)

Reviews empirical education research trends in West Germany since 1965. Reports on the movement from normative research to empirical research in educational settings. Considers research priorities and the primacy of the University of Constance (West Germany) in developments focusing on analyzing the factual order of the educational system rather…

Describes a simple exercise that demonstrates how content knowledge facilitates the rate of retrieval of domain-specific information. Music experts and novice students quickly name any seven words that relate to music. Reliably, the experts complete the task more quickly. Students rated this demonstration as both educational and interesting. (MJP)

Peer review has become commonplace in composition courses and is increasingly employed in the context of telecommunication technology. The purpose of this experiment was to compare the effects of anonymous and identifiable electronic peer (e-peer) review on college student writing performance and the extent of critical peer feedback. Participants…

There is a natural tension between experimentally designed studies and case studies, which differ in that they are not concerned with the interaction of variables in the quantitative and statistical sense. This paper describes a study that was not experimentally designed, but its major findings were generalizable to the overall population of…

Problems with conducting randomized field experiments in education are explored. Focus is on problems encountered while evaluating a group of dropout prevention projects. Project planners were asked to manipulate the subject eligibility criteria until they identified as eligible three to four times as many students as they could serve. They were…

This document reviews a collection of activities conducted by the Department of Physics at Virginia Commonwealth University to excite young people about physics so that they will be more likely to consider physics as a career. The Society of Physics Students performs demonstrations of physics experiments for Virginia high school physics classes…

OF THE EIGHT INITIAL EXPERIMENTS CONDUCTED BY RESEARCH AND INSTRUCTION (R AND I) UNITS, ESTABLISHED IN WISCONSIN SCHOOLS TO DEVELOP AND EXECUTE EXEMPLARY INSTRUCTIONAL PROGRAMS AND CONTINUOUSLY IMPROVE THEM THROUGH A PROGRAM OF RESEARCH, THREE EXPERIMENTS ACHIEVED SIGNIFICANT RESULTS. IN ONE, 99 SIXTH-GRADERS RECEIVED THREE TYPES OF SPELLING…

TWO METHODS OF IMPLEMENTING SCHOOL SHOP EYE PROTECTION PROGRAMS WERE INVESTIGATED TO DETERMINE THE MORE EFFECTIVE FOR DEVELOPING FAVORABLE AND LASTING STUDENT ATTITUDES. TWO INDEPENDENT SAMPLES, TOTALING 76, WERE DRAWN FROM THE TENTH GRADE VOCATIONAL MACHINE SHOP STUDENTS AND FROM COLLEGE STUDENTS ENROLLED IN AN ENGINEERING MACHINE SHOP COURSE.…

A study was made of the impact of nonsexist toys and games on the occupational aspirations and attitudes of kindergarten and fourth-grade children. It was hypothesized that children who play with toys and games that suggest "non-sex-biased" career options would be less likely to hold to traditional occupational expectations. Children in…

TO EVALUATE THE FEASIBILITY OF PROVIDING EXPERIENCES FOR INCREASING FUTURE HOME ECONOMICS TEACHERS' AWARENESS OF WORKING CLASS PATTERNS OF LIFE AND WORK, 13 COLLEGE STUDENTS, AT THE SOPHOMORE OR JUNIOR LEVELS, SPENT A PERIOD OF 10 WEEKS LIVING AND WORKING IN HOME SITUATIONS CHARACTERIZED BY LOW INCOME, LARGE FAMILIES, AND LIMITED EDUCATION, AND…

THIRTY STUDENTS IN GRADES 6 THROUGH 12 CLASSIFIED INTO HIGH, AVERAGE, AND LOW ABILITY GROUPS, USED EXPANDABLE POLYSTYRENE PLASTICS AND EQUIPMENT TO CONSTRUCT A FOAMED RUBBER ICE BUCKET TO PROVIDE AN INDICATOR OF THE SUCCESS OF THE POLYSENSORY SELF-INSTRUCTIONAL SYSTEM DEVELOPED FOR THIS EXPERIMENT. A PRETEST DETERMINED EXISTING KNOWLEDGES AND…

A stratified random sample of 84 student teachers in secondary school academic subject areas was distributed into four treatment groups according to a trichotomization of their scores on the Minnesota Teacher Attitude Inventory (MTAI). Each student teacher taught two 20-minute lessons with the same content to different classes of five pupils. On…