Young children in Australia enter early childhood education settings eager to make sense of the world that surrounds them. Their interest in every day experiences is evident in the range of questions asked, many of which are scientific in nature. Intended as a resource for adults working with 4-to 8-year-old children, this booklet provides an…

This document discusses the creation of a new formal language for the field of counseling psychology. Constructs for such a language are applied specifically to the communication of research information (especially research concerned with the effects of counselor action on clients) for experimental replication. Grammatical concepts of a formal…

Presents the advantages and disadvantages associated with the canned computer lab from the educational and software aspects. Summarizes two years of experience with canned labs and gives an example of a program and a typical student output. (GS)

Two laboratory investigations are described: (1) staining chromosomes in root tips and (2) demonstrating pollen tube growth. (LS)

Proposes that science teaching be based upon experimental work of the students, but most Italian schools are not equipped for this. This implies the development of inexpensive kits and syllabuses which can realistically be used in the schools. Provides one example of a suitable kit for individual experiments on electricity and magnetism. (GS)

Describes an undergraduate laboratory experiment in which the position of the double bond in an alkene is determined by identifying its ozonolysis products. This experiment can also be used to introduce the technique of gas chromatography. (MLH)

Describes an undergraduate organic chemistry laboratory experiment which utilizes the Gabriel Synthesis to demonstrate the acidity of imides and to provide an example of nucleophilic substitution reactions. The experiment also demonstrates the laboratory techniques involved in simple and steam distillation, filtration, extraction, and…

Describes an undergraduate biochemistry experiment which involves the preparation and kinetics of an oxidation-reduction enzyme system, methemoglobin reductase. A crude enzyme extract is prepared and assayed spectrophotometrically. The enzyme system obeys Michaelis-Menton kinetics with respect to both substrate and the NADH cofactor. (MLH)

Describes an undergraduate organic chemistry experiment which illustrates the use of organoboranes in organic syntheses and provides for the anti-Markownikoff hydration of alkenes. (MLH)

Provides a technique for the determination of the mass of a large, movable object. (CP)

Traces the inception of laboratory activities in the instruction of physics in American secondary and higher education institutions. In particular, the impact of Edwin Hall on secondary school physics instruction is described. (CP)

Describes a method to experimentally determine the longitudinal shift of a microwave beam at total internal reflection. Suggests that the activity be incorporated into an undergraduate laboratory program due to its ease in set-up and clarity of results. (CP)