Exploring Force and Motion Concepts in Middle Grades Using Computational Modeling: a Classroom Intervention Study

Journal of Science Education and Technology - Computational thinking (CT) and modeling are authentic practices that scientists and engineers use frequently in their daily work. Advances in...     

Teaching about complex systems is no simple matter: building effective professional development for computer-supported complex systems instruction

The recent next generation science standards in the United States have emphasized learning about complex systems as a core feature of science learning. Over the past 15 years, a number of educational tools and theories have been investigated to help students learn about complex systems; but surprisingly, little research has been devoted to identifying the supports that teachers need to teach about complex systems in the classroom. In this paper, we aim to address this gap in the literature. We describe a 2-year professional development study in which we gathered data on teachers’ abilities and perceptions regarding the delivery of computer-supported complex systems curricula. We present results across the 2 years of the project and demonstrate the need for particular instructional supports to improve implementation efforts, including providing differentiated opportunities to build expertise and addressing teacher beliefs about whether computational-model construction belongs in the science classroom. Results from students’ classroom experiences and learning over the 2 years are offered to further illustrate the impact of these instructional supports.     

Undergraduate political attitudes: An examination of peer,faculty, and social influences

A socialization perspective is used to examine the processes through which undergraduate student political attitudes are influenced by peers, faculty, and social trends. Using the model of undergraduate socialization provided by Weidman (1989) as a framework, I examine how the normative contexts of college campuses and students' interactions with peers and faculty serve to influence the political orientations of students, net of precollege and college characteristics. Based on longitudinal data from the Cooperative Institutional Research Program, the results indicate that student orientations change in ways quite similar to trends observed more generally, and that peer and faculty normative contexts tend to have a positive influence of equal magnitude on political orientations of students.An earlier version of this paper was presented at the 1995 meeting of the American Educational Research Association, San Francisco, CA.     

Condoning aggressive behaviour in sport: A cross-sectional research in a few consecutive age categories

The aim of this study was to compare the way in which 216 young handball players (Mage = 12.79, SD = 2.20) of different ages (nine- to 10-years-old, 11- to 12-years-old, 13- to 14-years-old, and 15- to 16-years-old) combined and integrated five different information cues (the consequences of the aggression, the current score, the time left to play, the context of the aggression, the relative importance of the game) for judging the extent to which an aggressive act performed by a player during a match of handball could be condoned. The participants indicated their judgement in 48 scenarios constructed from the combination of these information cues. A cluster analysis has been done. Two different positions on moral judgement were observed. The information cues were combined differently and moral judgement increased according the young players’ age. The approach of information integration completes the previous studies on developmental moral judgement in sport.     

A Descriptive Survey of Why Parents Choose Hybrid Homeschools

ABSTRACT

“Hybrid home schools” are schools in which students attend school with other students for 2 or 3 days per week in traditional classroom settings, and are homeschooled the balance of the week. This exploratory study presents self-reported reasons parents choose these schools, using an electronic survey of parents from four such schools (n = 136; 19% return rate). Findings indicate that families in these schools are relatively wealthier and more suburban than parents using tax credit programs, that they value school structures more than particular student achievement outcomes, and that they seek information on accreditation, curriculum, and the religious nature of schools in making their choices.     

The Role of Content Knowledge in Ill-Structured Problem Solving for High School Physics Students

While Physics Education Research has a rich tradition of problem-solving scholarship, most of the work has focused on more traditional, well-defined problems. Less work has been done with ill-structured problems, problems that are better aligned with the engineering and design-based scenarios promoted by the Next Generation Science Standards. This study explored the relationship between physics content knowledge and ill-structured problem solving for two groups of high school students with different levels of content knowledge. Both groups of students completed an ill-structured problem set, using a talk-aloud procedure to narrate their thought process as they worked. Analysis of the data focused on identifying students’ solution pathways, as well as the obstacles that prevented them from reaching “reasonable” solutions. Students with more content knowledge were more successful reaching reasonable solutions for each of the problems, experiencing fewer obstacles. These students also employed a greater variety of solution pathways than those with less content knowledge. Results suggest that a student’s solution pathway choice may depend on how she perceives the problem.     

Visual Representations of DNA Replication: Middle Grades Students’ Perceptions and Interpretations

Visual representations play a critical role in the communication of science concepts for scientists and students alike. However, recent research suggests that novice students experience difficulty extracting relevant information from representations. This study examined students’ interpretations of visual representations of DNA replication. Each of the four steps of DNA replication included in the instructional presentation was represented as a text slide, a simple 2D graphic, and a rich 3D graphic. Participants were middle grade girls (n = 21) attending a summer math and science program. Students’ eye movements were measured as they viewed the representations. Participants were interviewed following instruction to assess their perceived salient features. Eye tracking fixation counts indicated that the same features (look zones) in the corresponding 2D and 3D graphics had different salience. The interviews revealed that students used different characteristics such as color, shape, and complexity to make sense of the graphics. The results of this study have implications for the design of instructional representations. Since many students have difficulty distinguishing between relevant and irrelevant information, cueing and directing student attention through the instructional representation could allow cognitive resources to be directed to the most relevant material.     

美国的特殊教育与作为学校管理者的教师

学校的管理者是一个特殊的教师群体。要成为优秀的教育管理者,教师必须接受适当的培训以遵守特殊教育领域的法律和法规。教育管理培训方案必须包括特殊管理教育方面的要求。对教育管理者自我效能感的调查结果表明,教育管理者的自我评价与实际能力之间存在差异。研究结果显示,培训方案需要改进以便更严格地培养教师成为教育管理者,最终他们才能做到“不让一个孩子掉队”。     

Maternal Support of Children’s Math Learning in Associations Between Family Income and Math School Readiness

This study examined maternal support of children’s math learning at 36 months (n = 140) as a mediator of the association between early childhood family income and children’s counting and calculation skills at 4½ and 6–7 years. Family income was associated with this measure of children’s math school readiness, but the association was almost entirely indirect and mediated by observed maternal support of children’s numerical skills at 36 months. Maternal support of children’s spatial concept and general learning (cognitive stimulation and sensitivity) were not significant mediators of this association. Results suggest that income-based gaps in counting and calculation skills at school entry may be due in part to the constraints that low family income places on early numerical learning support.