Explores the relevance of a model for second language (L2) lexical organization and processing, with particular attention to its mental lexicon components, i.e., concepts, lemmas, and lexemes; and organization. Argues that the process of inferring the features of unknown words in a reading passage can be described in terms of lemma construction,…

Describes the learning processes experienced by six language teachers within the context of a three-year research project in which they worked and in the context of doing their Ph.D.s as research assistants. These processes involved learning specific research skills, understanding teaching practices, development of theory and concepts, links with…

Describes an educational program that asks students to attempt to prove that the earth is spherical and that it rotates. Presents tips to pique student interest and charts related to sensing the spin, nonrotation notions, flat earth fallacies, evidence that the earth is spherical and rotates, and the role of watersheds in proving that the earth…

Illustrates the construction of conceptual models on pressure and flotation using high school students' previous ideas on these concepts. Identifies three models and uses them to analyze students' ideas about physical phenomena and to recognize the inferential structure they use. Contains 28 references. (DDR)

Emphasizes the importance of promoting discourse and interactions in the classroom. Presents a lesson in which discourse reveals how the teacher helps students learn by constructing their own conceptual understanding of geometric shapes. Illustrates how the teacher facilitates an atmosphere in which students take responsibility for their own…

Describes a research project that examined the effects of the Computer-Intensive Algebra (CIA) and traditional algebra curricula on students' (N=802) understanding of the function concept. Results indicate that CIA students achieved a better understanding of functions and were better at the components of modeling, interpreting, and translating.…

Service-learning has drawn largely on a few major theorists for theoretical support. Additional theoretical perspectives drawn from cognitive psychology and social theory can also contribute, including constructs of concept formation, selective perception, categorization, critical reflection, and mediated learning. Each of these helps to explain…

Reports on a project in which children develop instructional technology skills while learning a great deal of science. Explains how children construct a multimedia presentation on the topic of invertebrates. (DDR)

Describes an interdisciplinary project encompassing English, history, public speaking, and mathematics that allows students to experience success with integrating mathematics into real world experiences. (DDR)

Presents methods for using the Longman Mini-Concordancer on tagged and parsed corpora rather than plain text corpora. The article discusses several aspects with models to be applied in the classroom as an aid to grammar learning. This paper suggests exercises suitable for teaching English to both native and nonnative speakers. (13 references)…

Describes five astronomy education projects implemented by the Harvard-Smithsonian Center for Astrophysics Science Education Department and funded by the National Science Foundation. Project efforts have concentrated in three major areas: (1) curriculum development; (2) teacher support; and (3) classroom technology. (DDR)

To investigate whether problem-based learning leads to conceptual change, the cognitive and metacognitive processes of a group of medical students were studied during the problem analysis phase, and their verbal communication and thinking processes were analyzed. Stimulated recall of the thinking process during the discussion detected a conceptual…

Kindergartners who received learning-set instruction on unidimensional classification, unidimensional seriation, and number conservation were retested at the end of first grade. Followup tests showed that the cognitive advantage and improved academic achievement gained from that teaching method was generally present 15 months later. However, a…

This study identified a repertoire of early-life experiences to which young children with visual impairments need to be exposed to develop a foundation for literacy. By analyzing 254 stories from three published basal literacy series, 22 global areas of experience were determined to be essential. Guidelines for providing these experiences and…

Investigates the fate of "u"-stem endings in Slavic languages. Findings indicate that the collapse of a paradigm is gradual and that the morphemes involved do not lose their grammatical meanings, although they may develop additional ones at later stages. The development of additional grammatical meanings is carried out in concert with…