Contextualizing instruction: Leveraging students' prior knowledge and experiences to foster understanding of middle school science

Contextualizing science instruction involves utilizing students' prior knowledge and everyday experiences as a catalyst for understanding challenging science concepts. This study of two middle school science classrooms examined how students utilized the contextualizing aspects of project‐based instruction and its relationship to their science learning. Observations of focus students' participation during instruction were described in terms of a contextualizing score for their use of the project features to support their learning. Pre/posttests were administered and students' final artifacts were collected and evaluated. The results of these assessments were compared with students' contextualizing scores, demonstrating a strong positive correlation between them. These findings provide evidence to support claims of contextualizing instruction as a means to facilitate student learning, and point toward future consideration of this instructional method in broader research studies and the design of science learning environments. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 45: 79–100, 2008     

Models and Paradigms in Kuhn and Halloun

In Modeling Theory in Science Education, Halloun (2004) adopts the word ‘paradigm’, but his use of the term is radically different from that of Kuhn. In this paper, I explore some of the differences between Kuhn’s paradigms and Halloun’s paradigms. Where Kuhn’s paradigms are public, community-defining exemplars of practice, Halloun’s paradigms are private, individualized ways of thinking. Where Kuhn writes of the paradigm shift as a revolutionary, vision-altering conversion experience, Halloun writes of a gradual evolution from one way of thinking to another and an easy back-and-forth switch between paradigms. Since Kuhn’s paradigms are self-enclosed and incommensurable, there is no objective standard by which one paradigm can be shown to be superior to the other. But Halloun uses ‘viability’ as a standard for paradigm choice. Underlying all of this is the more basic question of whether the history of science is an appropriate metaphor for student progress in the classroom. I conclude with some brief thoughts on this question.     

‘We need a woman,we need a black woman’: gender,race, and identity taxation in the academy

In 1994, Amado Padilla used the phrase ‘cultural taxation’ to describe the extra burden of service responsibilities placed upon minority faculty members because of their racial or ethnic background. In this paper, we expand upon Padilla's work and introduce the concept of ‘identity taxation’ to encompass how other marginalised social identities (such as gender, race and gender, and sexual orientation) may result in additional non-academic service commitments for certain faculty. Using qualitative interviews with faculty members at a large, public university in the Midwest, we examine identity taxation involving gender and the intersection of gender and race to demonstrate how women faculty (in general) and women of colour (specifically) feel their gender and racial group memberships influence their experiences in academia.     

Comparing motor development of deaf children of deaf parents and deaf children of hearing parents

Deaf children of Deaf parents perform better academically (Ritter-Brinton & Stewart, 1992), linguistically (Courtin, 2000; M. Harris, 2001; Vaccari & Marschark, 1997), and socially (Hadadian & Rose, 1991; M. Harris, 2001) than Deaf children of hearing parents. Twenty-nine Deaf children in residential schools were assessed to determine if a significant difference also exists in motor development between Deaf children with Deaf parents and Deaf children with hearing parents. In the locomotor area, 78.6% of Deaf children of Deaf parents and 73.3% of Deaf children of hearing parents reached or surpassed average performance levels. In regard to object control, 92.9% of Deaf children of Deaf parents and 93.3% of Deaf children of hearing parents reached or surpassed average performance levels. The study results show no significant difference between the motor development of Deaf children of Deaf parents and Deaf children of hearing parents.     

The Effect of Stakes on Accountability Test Scores and Pass Rates

Students may not fully demonstrate their knowledge and skills on accountability tests if there are no stakes attached to individual performance. In that case, assessment results may not accurately reflect student achievement, so the validity of score interpretations and uses suffers. For this study, matched samples of students taking state accountability tests under low-stakes and high-stakes conditions were used to estimate the effect of stakes on test performance and subsequent pass rates. Across five assessments, expected performance was greater under high-stakes conditions, with effect sizes ranging from 0.41 to 0.50 standard deviations and with students of lower ability tending to be slightly more affected by stakes. Depending on where cut scores were set, pass rates differed by up to 30% when comparing the low- and high-stakes conditions.     

Role Conflict and the High School Female Athlete

Abstract

The primary purpose of this study was to assess perceived and experienced role conflict of high school female athletes in enacting the roles of female and female athlete. Data were collected on 133 high school varsity athletes by the use of a 33-item questionnaire designed to assess perceived and experienced role conflicts of the subjects, their socioeconomic backgrounds, and specific instances of encouragement or discouragement from significant others experienced during their athletic careers. Thirty-two percent of the subjects responded that they perceived little or no problem with role conflict, and 50% had experienced little or no role conflict. Seventeen percent of the subjects responded that they perceived role conflict to be a great or very great problem with 11% experiencing role conflict to the same degree. A chi square analysis of perceived and experienced role conflict computed for the entire group of subjects indicated that the athletes perceived greater role conflict than they had experienced (p<.01). A one way analysis of variance was performed comparing the means of the athletes in traditionally socially approved sports, those in non-traditionally socially approved sports, and those participating in both categories. Results indicated a tendency for those participating simultaneously in both socially approved and non-socially approved sports to have experienced more role conflict (p≤.07).

A distinction between internal and external role conflict was suggested as a method of understanding the different types of pressures with which the female athlete must deal.     

Using Wikis to Collaboratively Prepare for Qualifying Examinations:

This article focuses on the experiences of seven Ph.D. students implementing a wiki to collaboratively prepare for qualifying examinations in the educational technology program at a large southeastern university. Concomitant study for such a rigorous examination is rare, and the trials and tribulations of the group are described in detail. Specific guidelines highlighting effective preparation options for qualifying exams are often elusive, and, as such, this article explores current research related to collaborative preparation and mentoring, as well as the qualifying examination process in total, in hopes of adding to the scientific body of knowledge related to these subjects. It also offers best practice strategies, suggests possible technology tips regarding wiki implementation, and seeks to better scaffold future scholars and/or mentors seeking to effectively participate in or plan for collaborative qualifying examination preparation.