An experimental study comparing English-only and Transitional Bilingual Education on Spanish-speaking preschoolers’ early literacy development

A longitudinal, experimental–control design was used to test the hypothesis that native language instruction enhances English language learner's (ELL's) native language and literacy development without significant cost to English development. In this study, 31 Spanish-speaking preschoolers (aged 38–48 months) were randomly assigned to two Head Start classrooms differing only in the language of instruction (English and Spanish). As predicted, results showed that Spanish language instruction resulted in significantly higher growth on both Spanish oral vocabulary and letter–word identification measures. There were no significant differences between classrooms on these same measures in English. Results extend previous work by showing that Transitional Bilingual Education may be a viable alternative to traditional English-only models. Implications for theory, future research, and early childhood practice are discussed.     

The Impact of an Engineering Design Curriculum on Science Reasoning in an Urban Setting

This study examines the use of engineering design to facilitate science reasoning in high-needs, urban classrooms. The Design for Science unit utilizes scaffolds consistent with reform science instruction to assist students in constructing a design solution to satisfy a need from their everyday lives. This provides a meaningful context in which students could reason scientifically. Eighth grade students from two urban schools participated in the unit. Both schools contained large percentages of racial/ethnic minority and economically disadvantaged students. Students demonstrated statistically significant improvement on a paper-and-pencil, multiple-choice pre and post assessment. The results compare favorably with both a high-quality inquiry science unit and a traditional textbook curriculum. Implications for the use of design-based curricula as a viable alternative for teaching science reasoning in high-needs, urban settings are discussed.

Using problem-based learning to increase computer self-efficacy in Taiwanese students

In Taiwan, teaching focuses around lecturing, with students having little opportunity to interact with each other. Problem-based learning (PBL) is a means of instruction where students learn the subject by being active participants in the pedagogical process, with the emphasis on problem-solving. In this study, the authors investigated whether PBL would enhance self-efficacy better than common lecturing with children who had little access to technology outside of school. Two sixth-grade computer classes, both with 32 students in each and both located in the mountainous regions of eastern Taiwan, served as participants. A quasi-experimental, non-equivalent control group design was used with one class utilizing PBL principles, while the other used traditional lecturing. A pre-/posttest was administered, using the General Self-Efficacy Scale with data analysis employing the Mann–Whitney test and Pearson Goodness-of-Fit. The results indicated that PBL is superior to lecturing, with respect to an increase in computer self-efficacy.     

Broadcasting and Cable

Larry James Gianakos' Television Drama Series Programming: A Comprehensive Chronicle, 1959-1975 (Metuchen, N.J.: Scarecrow Press, 1978—$27.50)

Albert C. Book and Norman D. Cary's The Radio and Television Commercial (Chicago: Crain Books, 1978—$6.95, paper)

Jay S. Harris's TV Guide: The First 25 Years (New York: Simon and Schuster, 1978—$14.95)

Steven R. Rivkin's A New Guide to Federal Cable Television Regulations (Cambridge, Mass.: MIT Press, 1978—$25.00)

Felix Chin's Cable Television: A Comprehensive Bibliography (New York: Plenum Publishing, 1978—$45.00)     

Introduction

Reading and Writing -     

The moral implications of teacher-child discourse in early childhood classrooms

The ways teachers engage children in discourse during teaching-learning activities have profound moral implications for children's learning and development. The goals of this article are (1) to explicate how teachers' control over classroom discourse patterns during teaching-learning activities influences the types of knowledge children create and acquire; (2) to examine the relationship between two types of teacher-child discourse commonly used in early childhood classrooms and the semiotic tools children appropriate through participation in each type of discourse; and (3) to outline the moral implications each has for children's learning and development. A framework for considering the moral implications of the ways teachers engage children in discourse during teaching-learning activities in early childhood classrooms is presented.