This two-lesson unit on rotating biological contactors (RBC's) is designed to be used with students who have had some experience in wastewater treatment and a basic understanding of biological treatment. The first lesson provides information on the concepts and components of RBC treatment systems. The second lesson focuses on design operation and…

This student manual provides the textual material for a unit on rotating biological contactors (RBC's). Topic areas considered include: (1) flow patterns of water through RBC installations; (2) basic concepts (shaft and stage); (3) characteristics of biomass; (4) mechanical features (bearings, mechanical drive systems, and air drive systems); (5)…

The Impromptu Teaching Model was designed by the University of Central Arkansas for use by preservice teachers in laboratory teaching experiences. Two teaching exercises, microteaching and reflective teaching, form the basis for impromptu teaching. Microteaching provides teachers with the opportunity to master various technical skills of the…

This report discusses the activities of the Mid-Continent Regional Educational Laboratory (McREL) from December 1984 through November 1985 under the sponsorship of the National Institute of Education (NIE). Numbers and types of services are identified, as are numbers and types of clients receiving services from McREL. The report is presented in…

A modular-type course in French was developed at the "Centre d'anglais et de francais" at McGill University (Montreal) to meet the needs of incoming students who were lacking skills in listening and oral expression. The course is composed of eight modules a semester, each module corresponding to 15 to 20 hours work on the student's part. The…

Designed for use in Trident Technical College's Secretarial Lab, this series of 12 production tests focuses on the use of the Lanier Word Processor for a variety of tasks. In tests 1 and 2, students are required to type and print out letters. Tests 3 through 8 require students to reformat a text; make corrections on a letter; divide and combine…

This six-chapter handbook is concerned with the proper care and maintenance of microorganisms recovered from water and wastewater samples. These microorganisms must be cultured and identified to determine not only what kinds of cells were present in the original sample, but also what concentrations they appeared in. The skills covered are basic to…

The design of a freshman chemistry laboratory program involving nontraditional qualitative investigations of metal ion properties is explained. Experiments are discussed which focus on synthesis of a metal salt, properties of metal ions and their separations, and oxidation states of metals. (DT)

This paper describes the development of a new language laboratory program for advanced students at the English Language Center on the Michigan State University campus, which is designed to bridge the gap between manipulative classroom drills and the demands of the lecture halls. (Author)

This is the report of a study of the effects of an optional attendance policy on actual lecture and laboratory attendance and on cognitive examination performance in the medical physiology course at the University of Kansas Medical Center. (Editor)

Describes a semistructured approach to the laboratory situation in organic chemistry. (Author/PEB)