Many researchers agree that children's difficulty with fraction and rational numbers is associated with their whole number knowledge, but they disagree on the origin of the whole number bias. This article reviews three explanations of the nature of the bias. These accounts diverge on the questions of whether or not early quantitative…

In this article, the authors describe the concept of an anticipation guide. The anticipation guide is a strategy in which students forecast the major ideas of a reading passage through the use of statements that activate their thoughts and opinions. This strategy is helpful in activating students' prior knowledge and stimulating student interest…

The authors examined whether the influence of reading purpose on reported use of text-processing strategies was moderated by students' prior knowledge about the topic of the text. Using multiple regression analyses with interaction terms, they found that the effect of reading purpose on reported use of memorization and elaboration strategies…

This article considers the nature of experiential learning and its relationship with other forms of learning that gain their authority through assessment. It argues that experiential learning is grounded in, and stands upon, the notion of phronesis and is the goal of an educated populace. This argument, should it prevail, would see wisdom as the…

Sixty-two high-school biology students, paired heterogeneously based on prior knowledge, learned about genetic using GenScope, a computer-based learning environment (CBLE), over four 90-minute class periods. Differences between low and high prior knowledge students emerged with convergence of verbal process data and pre- and post-test product…

This article provides a broad introduction to comprehension instruction in content area classrooms. It begins with a brief overview of research and of thinking processes involved in reading comprehension. Then, it outlines several research-supported comprehension strategies, including: (1) Question asking and answering; (2) Clarifying a purpose…

Instructors used an electronic response system to enhance student-centered learning in large and small college biology classes. The system worked well to engage students in learning the subject matter and to assess their prior knowledge and misconceptions. It provided useful feedback to students as well as instructors. Problems encountered…

This study examined the influence of scaffolding on the development of critical thinking skills in an online course on Instructional Design. Data were collected through interviews and document artifacts from five participants of the online course. Findings indicated that participants' critical thinking moved through three stages from mirroring, to…

This paper sets out to identify some key problems, issues and challenges relating to out-of-school experiences of learners in science teaching that emerged during classroom observations in schools in Botswana. Generally, there is evidence suggesting weak incorporation of learners' experiences into teaching. The experiences seemed to have a lower…

In an era of continuing developments in science and technology, teachers are faced with an increasingly challenging task of helping K-12 students become and remain scientifically literate. Effective science instruction involves activation of prior knowledge, hands-on learning, and continuous reflection. Technology has the potential to play a…

Hierarchical graphs represent relationships between objects (like computer file systems, family trees etc.). Graph nodes represent the objects and interconnecting lines represent the relationships. In two experiments we investigated what concepts are necessary for understanding hierarchical graphs, what misconceptions evolve when some of the…

In this article, the author advocates the use of literacy narratives--assignments in which students are asked to describe and reflect upon their experiences with reading and writing. Among their other uses, she believes that they provide a sense of students' prior literacy experiences and of their general feelings toward reading and writing, and…

In this essay I argue that when children come to school they are confronted by an intervention in their learning, and comprehension of the world in general, that contrasts with the experiences of learning that they have generated previously to make sense of their world. Prior to schooling, where learning is directed from outside, children have…

This firsthand account through the eyes of a facilitator describes meaningful moments of someone learning the job. Working primarily with new teachers in a large high school, this facilitator experienced the challenges and the fulfillment in helping colleagues, and discovered that the benefit of helping others grow may be one's own growth.

Findings from a quasi-experimental study of children's ideas about the solar system and how these ideas changed in response to a 10-week intervention period of formal astronomy teaching at a single primary school in England are presented in detail. Initial interviews with all of the 9- to 11-year-olds involved revealed a relatively poorly…