Comments are provided by ten authors in response to an article on language separation and crosslinguistic influence in bilingual first language acquisition. (Author/VWL)

Responds to comments by various researchers on an early article presented in the same issue of this journal, claiming that language separation and crosslinguistic influence coexist in bilingual first language acquisition. (Author/VWL)

Presents a two-phase instructional design model that focuses on optimizing step size in whole-task approaches to learning complex, mainly non-recurrent, cognitive skills. Step size in a multiple-step whole-task approach-needed for the process worksheets-is determined on the basis of estimated part-task complexity. A developmental study of the…

Determined the effects of classroom music instruction featuring the keyboard on the spatial-temporal reasoning of 62 kindergartners assigned to keyboard or no music conditions. Found that the keyboard group scored significantly higher than the no music group on both spatial-temporal tasks after 4 months of lessons, a difference that was greater in…

Studied whether the language spoken affects the way subjects think about time in 3 experiments involving: (1) 26 English-speaking and 20 native Mandarin-speaking college students; (2) 25 bilingual students; and (3) 70 native English speakers. Results suggest that language is a powerful tool for shaping thought about abstract domains and habitual…

Looks at the notion made popular in the 1960's by Paul Hirst and Richard Peters that knowledge is intrinsic to the educational enterprise. Suggests that the acquisition of knowledge remains the primary justification for educational experiences, and proposes a concept of knowledge as "rationality's database". (Contains 16 references.) (NB)

Asserts that developmental psychology's assumption that representation has nature of encoding is false; offers alternative model of representation based on the pragmatics of action. Argues that "frame problems" originate in the inherent requirement that encoding representations carry explicit content. Maintains that these problems impact…

Discusses children's musical intuitions and two methods of meaning construction, pathmaking and mapmaking. Traces the work of one child who builds the tune Hot Cross Buns with Montessori bells and explains in detail the development. Considers educational implications. (CMK)

Discusses previous attempts to confront the issues of how to deal with the competing views of science. Suggests an alternative approach for integrating nature of science issues into the school science curriculum. States that educators must accept that no single nature of science exists. Includes references. (CMK)

Presents the results of a two-year project to implement recommendations for reform of college-level introductory science courses. Studies student reactions in a course required for biology majors and concludes that critical thinking skills can be successfully integrated with the study of process in science. (Contains 30 references.) (DDR)

Presents a series of standard demonstrations as examples of activities that can be used to introduce multiple concepts and tie different sections of an introductory physics course together. Contributes to changes in classroom dynamics by stimulating student engagement and encouraging inclusivity. (Contains 23 references.) (DDR)

Describes trends in students' explanations of biological change in organisms. Student responses to questions on how graphically depicted phenomena occur were analyzed and most students were unable to offer causal explanations. (Contains 27 references.) (DDR)

Examines developments in social and cultural approaches to understanding child development. Focuses on the issue of narrative understanding as an important concept in discussions of how children learn. Offers a rationale for considering narrative understanding as a key aspect of meaning-making and discusses implications for classroom practice.…

Describes a qualitative study of a community college American history survey course using constructivist teaching, wherein all learning is filtered through the learner's lens of reality. Reports that one implication of the study was that applied constructivism may result in a more holistic approach to teaching and learning. (AUTH/NB)

Discrepant effects of drugs on behavior maintained by temporal-discrimination procedures make conclusive statements about the neuropharmacological bases of timing difficult. The current experiment examined the possible contribution of a general, drug-induced disruption of stimulus control. Four pigeons responded on a three-component multiple…