Past research has indicated that a number of problems in the teaching of science in elementary classrooms are rooted in the preparation of inservice teachers. One continuing concern is elementary teachers' lack of science content knowledge. As indicated by numerous research studies reporting positive results, one method of addressing these…

In this study, the effect of problem-based learning on students' academic achievement and performance skills in a unit on the human excretory system was investigated. Sixty-one 10th grade students, from two full classes instructed by the same biology teacher, were involved in the study. Classes were randomly assigned as either the experimental or…

Objective: Controlled study of the long-term outcome of selective mutism (SM) in childhood. Method: A sample of 33 young adults with SM in childhood and two age- and gender-matched comparison groups were studied. The latter comprised 26 young adults with anxiety disorders in childhood (ANX) and 30 young adults with no psychiatric disorders during…

Background: Psychophysiological measurement of processes related to social behavior may be valuable for research on individual differences and subgroups among children with autism spectrum disorders (Coleman, 1987; Dawson, Klinger, Panagiotides, Lewy, & Castelloe, 1995; Modahl et al., 1998). In particular, recent research and theory suggests that…

Background: Dyslexia is now generally acknowledged to involve difficulties in phonological processing. However, the links between reading difficulties and speech difficulties remain unclear. Method: In the present study, 17 children with speech difficulties between the ages of four and six were compared to children with a family history of…

Successful teaching and learning of chemistry depends partly on correct use of a teaching method whose activities target most learning senses. Though chemistry enhances students' learning of biology, physics and agriculture on which Kenyan industries and prosperity depend, most secondary school students in Kenya perform poorly on the subject. This…

Research has documented that collaborative learning groups improve student learning and increase the likelihood that students will have positive attitudes about both the subject matter and their peers. However, researchers know much less about how collaborative learning groups may influence student behavior and the extent to which their utility…

This article derives an updated cost-benefit ratio for the High/Scope Perry Preschool Program, an intensive preschool intervention delivered during the 1960s to at-risk children in Ypsilanti, Michigan. Because children were randomly assigned to the program or a control group, differences in outcomes are probably attributable to program status.…

This article presents a control group study of the influence of a partnership-centered, community-based learning program on students' academic writing. The improved writing of first-year students in the Chicago Civic Leadership Certificate Program (CCLCP), we argue, results from the deeply situated learning that took place in the context of…

This study examines whether aural processing of input in a situation of implicit instruction can build a knowledge base that is available for both comprehension and production tasks. Fifty-five Dutch students learned a miniature linguistic system based on Spanish. Three training conditions were compared in which noun-adjective gender agreement was…

This study examined the effects of teacher feedback from Reading Curriculum-Based Measurement (R-CBM) progress results for low-performing students in general education classrooms. Participants included 44 second-grade teachers and 184 students in their low reading groups. After 5 weeks of progress monitoring, teachers in the two experimental…

This article presents a guide that seeks to provide assistance to educational practitioners in evaluating whether an educational intervention is backed by rigorous evidence of effectiveness, and in implementing evidence-based interventions in their schools or classrooms. The guide is organized in four parts: (1) A description of the randomized…

Question-asking is a basic skill, required for the development of scientific thinking. However, the way in which science lessons are conducted does not usually stimulate question-asking by students. To make students more familiar with the scientific inquiry process, we developed a curriculum in developmental biology based on research papers…

This pilot study explores the use of Internet Relay Chat facilities such as ICQ in an independent-use mode, as a vehicle for potential English language enhancement. In a small-scale study, a number of Hong Kong secondary school students (Grades 7-10) agreed to participate in an on-line "chatting" programme (in a text-only mode) for a minimum of 20…

Access to the textual world of academia requires that learners are familiar with the critical open-ended questioning stance demanded by textuality. Anecdotal evidence suggests that learners registered for the Bachelor of Education Honours degree are unable to generate appropriate questions to interrogate academic text, impacting on their ability…