Discusses validity issues associated with three popular content-general reading college placement tests and then presents a theoretical argument to support an alternative placement procedure using content-specific testing. Proposes that content-specific tests would have improved content-related and construct-related validity. States that more…

An experiential approach to environmental studies courses in institutions of higher education would better prepare students to address the environmental problems of the new millennium. Research shows that adults prefer experiential and task-centered learning. Experiential learners are more efficient workers, achieve higher grades, are more…

A third-grade teacher and an English-as-a-second-language (ESL) teacher collaborated to ensure the academic success of English language learners through "a priori" teaching. The ESL support teacher used verbal and interactive strategies to pre-teach key concepts, skills, and academic language relevant to the subject matter being covered…

We present a methodology for designing better learning environments. In Phase 1, 6th-grade students' (n = 223) prior knowledge was assessed using a difficulty factors assessment (DFA). The assessment revealed that scaffolds designed to elicit contextual, conceptual, or procedural knowledge each improved students' ability to add and subtract…

This article examines conceptual learning of genetics in a Year 10 Australian classroom from an ontological perspective. The study was part of a larger research project about teaching and learning genetics with computer-based multiple representations. Genetics is an important but difficult topic to teach and learn at school. The study used an…

For the past two decades, a growing amount of research has shown that the use of analogies in science teaching and learning promotes meaningful understanding of complex scientific concepts (Gentner, [1983]; Glynn, [1989]; Harrison & Treagust, [1993]; Wong, [1993]). This article presents a study in which multiple analogies were used as scaffolding…

As part of the Victorian Early Numeracy Research Project, over 1400 Victorian children in the first (Preparatory) year of school were assessed in mathematics by their classroom teachers. Using a task-based, one-to-one interview, administered during the first and last month of the school year, a picture emerged of the mathematical knowledge and…

This study describes the multiple analogical models used to introduce and teach Grade 12 chemical equilibrium. We examine the teacher's reasons for using models, explain each model's development during the lessons, and analyze the understandings students derived from the models. A case study approach was used and the data were drawn from the…

This study investigates the influence of using five web-based practice units on English verb-noun collocations with the design of a web-based Chinese-English bilingual concordancer (keyword retrieval program) on collocation learning. Thirty-two college EFL students participated by taking a pre-test and two post-tests, and responding to a…

Many topics in chemistry are difficult for learners to understand, including symmetry. Reasons for this difficulty include its multi-level content, instructional methodologies utilized, and learner variables. This study examined the effect of initial instructional modality and prior knowledge on learning of point group symmetry. Forty-four…

Despite a century of research, the mechanisms underlying short-term or working memory for serial order remain uncertain. Recent theoretical models have converged on a particular account, based on transient associations between independent item and context representations. In the present article, the authors present an alternative model, according…

This paper sets out to examine the impacts of schooling and health knowledge on the level of obesity in Taiwan. The results obtained from a sample of Taiwanese females support the hypothesis of Grossman that schooling has a direct positive effect on health by reducing the likelihood of a person being obese. The awareness of obesity-disease…

This study compares the effects of forum discussion with metacognitive guidance versus forum discussion without metacognitive guidance (Forum) on solving real life mathematical tasks and self-regulated learning. Participants were 43 Grade 7 students (boys and girls) who practiced online problem-solving in two classes. The metacognitive guidance…

It has recently been determined that generating an explanatory hypothesis to explain a discrepant event is important for students' conceptual change. The purpose of this study is to investigate how students' generate new explanatory hypotheses. To achieve this goal, questions are used to identify students prior ideas related to electromagnetic…

Beginning teachers in Northern Ireland and the United States conducted structured inquiry projects in which they investigated elementary children's understanding of history and social studies. Interviews with the teachers and analysis of their written assignments indicate that these investigations challenged their beliefs about children's prior…