A class of closely related hierarchical grouping methods are discussed and a procedure which implements them in an integrated fashion is presented. These methods avoid some theoretical anomalies inherent in clustering and provide a framework for viewing partitioning and nonpartitioning grouping. Significant relationships between these methods and…

This paper contends that neither taxonomic nor generative phonology is a satisfactory basis for contrastive analysis or for teaching Russian pronunciation. A third theory, known as natural phonology, is more useful. (CHK)

Describes a game in which elementary school students learn the importance of plants and some techniques of plant identification. (LS)

Development of the ability to classify auditory patterns was studied at grades 2, 6, 10, and 12 and at adult age levels. Both accuracy and feature use in classification were consistent across age; the age changes that did occur appeared to be due to differences in perception rather than process. (JMB)

Describes chemical labeling standards that utilize explanatory symbols to identify hazardous substances. (MLH)

Describes a simulation exercise for the teaching of taxonomy which involves studying drawings of members of an imaginary phylum. The use of this material can lead to an understanding of relationships, classification, taxonomic strategies, polymorphism, variation, and evolution. (Author/GS)

The disadvantages of the R. Heber, the World Health Organization, and the A.A.M.D. (1973) classifications of mental deficiency are discussed. (Author/CL)

The authors describe the preservice curriculum for vocational agriculture teachers at Ohio State University, Columbus--Preparation for each taxonomy area, professional features of the curriculum, and internships in agriculture. (EA)

The author describes a game in which students must determine by asking a small number of questions which of 24 attribute blocks has been chosen. The activity is appropriate for primary children using blocks to keep track of answers, or for older students working mentally. (SD)

Describes an introductory course in geology for nonscience majors that involves students in laboratory exercises related to rock classification. (GS)

A study examined the self-perceptions of college students regarding the effects of alcohol consumption on their interpersonal communication. Forty-seven subjects--the majority of whom were students majoring in health care studies--completed a 52-item Q-sort on alcohol and communication. Four person-types evolved: the social drinker, the…

A study investigated whether or not the global structure of a text influences its readability and how that influence might be related to the already recognized influences of vocabulary and sentence length. The subjects, 250 fourth-grade students in Quebec, each read four texts representing four different structures, four subjects, and two levels…