This article reports on a classroom teaching experiment that engaged a group of high school students in designing sampling simulations within a computer microworld. The simulation-design activities aimed to foster students' abilities to conceive of contextual situations as stochastic experiments, and to engage them with the logic of hypothesis…

Reports on apparatus for generating Lissajous figures, projecting Poisson's spots, photographing diffraction patterns, electric heating, and projecting moving longitudinal waves on an oscilloscope. (SL)

Describes experiments conducted with semiconductors, photo-cells, and an oscilloscope. (SL)

The author describes a simple experiment in which the students merely drop pins into a container and keep score of their predictions and results. However, there are endless possibilities for some open ended discussions about the nature of man in his world when the conditions of this experiment are altered and the results are watched carefully.…

Fourth- and fifth-graders were taught how to design simple unconfounded experiments using one of two instructional methods differing only in whether children manipulated physical or virtual materials. Results indicated that the two types of materials were equally effective in achieving several instructional objectives, including the design of…

Obtaining the consent of human participants in the conduct of research is a growing concern in research circles, particularly in university settings. Informed consent is the agreement of a person, or an authorized representative, to participate in a research activity. The paper offers suggestions for obtaining informed consent. (NG)

The pedagogue is caught between the qualitative and quantitative or regularized aspects of his work, a situation not automatically conducive to scientific study. The article refreshes the instructor on the elementary principles of experimentation: observation, systematization, elaboration of hypothesis, and startegies of comparison. (Text is in…

Describes the nature and consequences of liberally or improperly applying the traditional reading research methodology and provides an argument for tempering judgments about the relative contributions that experimental studies make to the professional literature in reading. (SKC)

This study was made to see if there were descriptive statistics on (1) size of enrollment, (2) location (by population density), (3) availability of staff, (4) curriculum (transfer or terminal), and (5) cost per student that would predict rejection of experimental programs in staff use. The attitude of the chief administrator as the single most…

Forty sub-literate adults were given reading and comprehension skill training. Twenty of the subjects were taught using a multimedia, multimodal and multilevel communication skill system (Experimental Group). The other twenty were taught in a traditional manner using standard reading texts (Control Group). Both Groups received an average of 265…

Charter schools incorporate the focus of magnet schools but often go beyond their academic specialization to more social goals. They can operate at both elementary and secondary levels, although they are always quite small. The greatest difference, however, between charter schools and other public schools is their status as a bridge between public…

An experiment, using College Board Achievement Tests in German Reading and Listening Comprehension, to compare the effectiveness of earphones and loudspeakers in language test presentation is described. Related opinions, implications, and conclusions on the effectiveness of communication media in language teaching and testing are offered. (AF)

This sourcebook for chemical activities is designed to be used as a student laboratory book for both junior and senior high school students. The student's role as a knowledgeable consumer and informed citizen is stressed. Each activity includes a list of needed materials, procedures, reactions, questions, and notes for the teacher which include…