Describes a series of experiments (intended to approximate the research experience) investigating the reaction of ferrocenylmethylation with aniline. Students carry out reactions in nitrogen atmosphere, identify products by nuclear magnetic resonance spectroscopy and propose mechanisms and structures for reactions. Gives procedures for each…

Recommends using dramatic demonstrations on the energy in chemical systems as an audiovisual adjunct to lectures and laboratory sessions. Lists materials needed and provides procedures including safety tips for various experiments to produce chemical light, heat, and electricity; and concludes with hints for preparation/rehearsal. (JM)

Provides innovative ideas in biology, chemistry, and physics on the following topics: enzyme decomposition; chemical waste; time measurement; acid-base color magic; ball bouncing properties; heat; cell theory; and specimen boxes. Materials and procedures are listed when appropriate along with hints for expanding these ideas and investigations. (JM)

Background information, procedures, and typical results are provided for a three-part experiment involving reactions of potassium thiocynate (KNCS) with sulfuric acid. The experiment represents the final stage of structured work prior to students' research projects during their final year. (JM)

Defends the need for field trips, citing studies that show improved methodology and process knowledge. Also stresses the need for planning to ensure success of such trips and to defend them on a cost basis. Includes two field studies: a north/south slope comparison, and fossil record study. (JM)

Discusses issues related to the missions of national laboratories as well as to the quality of their staffs. Indicates that although dilemmas exist within these institutions, an examination of such issues as management problems and institutional goals and activities may lead to an improvement of these national resources. (JN)

Although critical thinking and developing student confidence are common objectives of courses in laboratory experimentation, a study of one Australian engineering course showed little progress toward these goals and that efforts to develop critical thinking conflicted with development of confidence. More attention to these objectives within course…

Describes an audiovisual teaching unit on the chemical laboratory technique of recrystallization which was developed along problem-solving lines and based on observation of student laboratory behavior. Discussion includes usual procedures for developing such units, how this unit solves problems typically associated with teaching, and its general…

The usual apparatus for demonstrating Boyle's law produces reasonably accurate results, but is not impressive as a demonstration because students cannot easily appreciate the change in pressure. An apparatus designed to produce a more effective demonstration is described. Procedures employed are also described. (JN)

A study was conducted to quantify the laboratory time-on-task behavior of students enrolled in selected programs of vocational horticulture and to relate variables to time-on-task behavior. Standing idle was the most frequent reason for coding behavior off task. Male pupils had higher time-on-task scores than female pupils. (CT)

Describes a coriolis simulator which uses a carbon paper trace technique and a simple specific-heat apparatus, emphasizing instructional considerations. Also indicates that a variac and an ordinary electric drill can be used to wind coil if a lathe or coil winder are unavailable. (JN)

A modified Winkler method for determining dissolved oxygen in water is described. The method does not require use of a burette or starch indicator, is simple and inexpensive and can be used in the field or laboratory. Reagents/apparatus needed and specific procedures are included. (JN)

In 1975 all four-year and two-year colleges in the country offering two or more foreign languages were surveyed regarding use of videotape in language instruction. Questions were asked regarding types of equipment, use and acceptability, and answers indicate great interest in videotape potential and pedagogical value. (CHK)

This study explores the effectiveness of conceptual change oriented instruction and standard science instruction and contribution of logical thinking ability on seventh grade students' understanding of heat and temperature concepts. Misconceptions related to heat and temperature concepts were determined by related literature on this subject.…

This paper sketches the reasons for the tremendous increase in university expenditure on research out of internal funds including changes in federal indirect cost reimbursement policies and the growing cost of start-up funds for new faculty. It presents evidence, based on a survey of department chairs, deans, and vice presidents for research at…