Background: On a normative level as a subject physical education and health seems to adjust rapidly to changes in society, whereas at the practical level it seems receptive to limiting factors such as time, facilities and dominating inherited practices. How can the structuring components and processes relating to the shaping, transformation and…

Language acquisition may be one of the most difficult tasks that children face during development. They have to segment words from fluent speech, figure out the meanings of these words, and discover the syntactic constraints for joining them together into meaningful sentences. Over the past couple of decades, computational modeling has emerged as…

An outline is provided for study of the collection, storage, and retrieval of all kinds of print and nonprint information. Coverage includes descriptions of types of primary materials, print and nonprint information, bibliographic description and cataloging; indexes and abstracts; bibliographies; reference works; retrieval methods; reprography;…

Discussion of the changing environment and role of the school media specialist focuses on the adaptation of the Library of Congress classification, professional standards, staffing, the possibility of keeping school libraries open in the summer, the librarian as evaluator of material content rather than organizer, and school librarians as…

Discusses the training of professional and paraprofessional staff who do reference work in public, academic, and school libraries. The source-centered teaching approach versus teaching the search process is discussed, user needs are considered, and the use of Dewey Decimal Classification to teach the organization of the collection is described.…

A small, representative sample of 114 U.S. teachers was asked to indicate the extent to which their teaching corresponded to each of five models of teaching. The models were those discussed by M. M. Kennedy: (1) process model; (2) learning community model; (3) additive model; (4) transformational model; and (5) conceptual change model. Respondents…

A more comprehensive definition of the variable "interaction" is needed to answer the numerous questions concerning interaction effects in distance learning. This study attempts to qualify the concept of interaction by applying various dimensions such as amount, timeliness, method, spontaneity, and quality. In turn, these dimensions of interaction…

This booklet, one of six in the Living Things Science series, presents activities about diversity and classification of living things which address basic "Benchmarks" suggested by the American Association for the Advancement of Science for the Living Environment for grades 3-5. Contents include background information, vocabulary (in…

Cross-validated classification accuracies were compared under assumptions of equal and varying degrees of unequal prior probabilities of group membership for 24 bootstrap and 48 simulated data sets. The data sets varied in sample size, number of predictors, relative group size, and degree of group separation. Total-group hit rates were used to…

The taxonomy presented in this paper lends structure to the range of tasks or problems possible within an interactive graphical medium. Some 70 items from a testing project were the basis for forming the categories described in the taxonomy. Items were drawn from science and technology domains. The categorical scheme was refined iteratively by two…

In education and the social sciences, problems of interest to researchers and users of research often involve variables that do not meet the assumptions of regression in the area of an equal interval scale relative to a zero point. Various coding schemes exist that allow the use of regression while still answering the researcher's questions of…

It is argued that viewing learners' errors as evidence for the emergence of new varieties of the English language is dangerously mistaken, particularly where it leads to the abandonment of Standard English as a model for learners. It is shown how this view is mistaken by: (1) citing recent British thinking on the relationship of varieties of…

Two parallel studies investigated the influence of principle-based and attribute-based similarity relations on new category learning by preschoolers. One of two possible functions of a single novel artifact (which differed between studies) was modeled for children and practiced by children. Children then judged which test objects received the same…

An exploratory study probed the extent to which children rely on category membership to guide their inferences. A total of 60 children, 4 years of age, were shown 20 sets of pictures of various animals, plants, and minerals. Each set consisted of representations of three objects having two salient features: perceptual similarity/dissimilarity and…

This paper critiques Aumaugher's argument which states that the traditional view of concepts as a class of things with common attributes is an insufficient one, and, instead, offers a counterview, stemming from the work of Wittgenstein, which says that a concept is a term's use in the language. Aumaugher states that concept-terms are not always,…