Computational Thinking from a Disciplinary Perspective: Integrating Computational Thinking in K-12 Science,Technology, Engineering,and Mathematics Education

This article provides an introduction for the special issue of the Journal of Science Education and Technology focused on computational thinking (CT) from a disciplinary perspective. The special issue connects earlier research on what K-12 students can learn and be able to do using CT with the CT skills and habits of mind needed to productively participate in professional CT-integrated STEM fields. In this context, the phrase “disciplinary perspective” simultaneously holds two meanings: it refers to and aims to make connections between established K-12 STEM subject areas (science, technology, engineering, and mathematics) and newer CT-integrated disciplines such as computational sciences. The special issue presents a framework for CT integration and includes articles that illuminate what CT looks like from a disciplinary perspective, the challenges inherent in integrating CT into K-12 STEM education, and new ways of measuring CT aligned more closely with disciplinary practices. The aim of this special issue is to offer research-based and practitioner-grounded insights into recent work in CT integration and provoke new ways of thinking about CT integration from researchers, practitioners, and research-practitioner partnerships.

     

Using a computerized concept mapping program to assess preservice teachers' thinking about effective teaching

Concept mapping with Learning Tool, a computerized mapping program, was used to assess changes in the content and organization of 17 preservice teachers' concept maps for the topic of effective teaching. Preservice teachers in their senior year of an early childhood teacher education program constructed and revised concept maps with a partner. They entered reflections on each mapping experience into their reflective journals, developing implications for teaching. Analysis of the concept maps revealed that these students had a primary concern with classroom management throughout the year, linking diverse information to that concept. They evidenced detailed and diverse understandings under the labels of knowledge and organization. Professionalism was a common item, though it was less well developed. Their reflective journals indicated that these students moved from describing emotional reactions to using the computer program as a basis for reflection on the teaching/learning process. This study illustrates how concept mapping can be useful in describing students' evolving constructions of knowledge in a particular subject area, and in promoting reflection.     

Validity Evidence of an Electronic Portfolio for Preservice Teachers

This study applied Messick's unified, multifaceted concept of construct validity to an electronic portfolio system used in a teacher education program. The subjects included 128 preservice teachers who recently completed their final portfolio reviews and student teaching experiences. Four of Messick's six facets of validity were investigated for the portfolio in this study, along with a discussion of the remaining facets examined in two previous studies. The evidence provided support for the substantive and generalizability aspects of validity, and limited support for the content, structural, external, and consequential aspects of validity. It was suggested that the electronic portfolio may be used as one requirement for certification purposes, but may not be valid for the purpose of assessing teacher competencies .     

Changing What Is Taught: Hearing the Voices of the Underrepresented

A major challenge facing institutions today is determining the role of multiculturalism in the curriculum. Institutions that decide to incorporate multicultural perspectives into the general education curriculum will face a long and complex process. In 1991, policy makers at Florida State University made the decision to require all students to take multicultural courses to fulfill general education requirements. This article provides insight into the challenges that institutional policy makers face as they seek to change the curriculum to include the voices of those previously underrepresented.     

“What’s So Terrible About Swallowing an Apple Seed?” Problem-Based Learning in Kindergarten

Problem-Based Learning (PBL), an instructional approach originated in medical education, has gained increasing attention in K-12 science education because of its emphasis on self-directed learning and real-world problem-solving. Yet few studies have examined how PBL can be adapted for kindergarten. In this study, we examined how a veteran kindergarten teacher, who was experienced with PBL in her own learning, adapted PBL to teach students earth materials, a topic emphasized in the new state curriculum standards but students had difficulty understanding. The pre-post tests showed that students improved their content understanding. Analysis of the classroom discourse showed that PBL and the teacher’s facilitation strategies provided opportunities for students to develop their questioning skills. In conclusion, we discuss the implications of this study for using PBL in kindergarten classrooms.     

Three-dimensional trunk kinematics in golf: between-club differences and relationships to clubhead speed

The aims of this study were (i) to determine whether significant three-dimensional (3D) trunk kinematic differences existed between a driver and a five-iron during a golf swing; and (ii) to determine the anthropometric, physiological, and trunk kinematic variables associated with clubhead speed. Trunk range of motion and golf swing kinematic data were collected from 15 low-handicap male golfers (handicap = 2.5 ± 1.9). Data were collected using a 10-camera motion capture system operating at 250 Hz. Data on clubhead speed and ball velocity were collected using a real-time launch monitor. Paired t-tests revealed nine significant (p ≤ 0.0019) between-club differences for golf swing kinematics, namely trunk and lower trunk flexion/extension and lower trunk axial rotation. Multiple regression analyses explained 33.7–66.7% of the variance in clubhead speed for the driver and five-iron, respectively, with both trunk and lower trunk variables showing associations with clubhead speed. Future studies should consider the role of the upper limbs and modifiable features of the golf club in developing clubhead speed for the driver in particular.     

More students and more diverse: new trends in international mobility to Portugal

Tertiary Education and Management - Growing numbers of students from non-Portuguese speaking countries, designated as ‘non-Lusophone students’, signal the diversification of the...     

Effects of the child–perpetrator relationship on mental health outcomes of child abuse: It's (not) all relative

The present study was conducted to better understand the influence of the child–perpetrator relationship on responses to child sexual and physical trauma for a relatively large, ethnically diverse sample of children and youth presenting for clinical evaluation and treatment at child mental health centers across the United States. This referred sample includes 2,133 youth with sexual or physical trauma as their primary treatment focus. Analyses were conducted to ascertain whether outcomes were dependent on the perpetrator's status as a caregiver vs. non-caregiver. Outcome measures included psychiatric symptom and behavior problem rating scales. For sexual trauma, victimization by a non-caregiver was associated with higher posttraumatic stress, internalizing and externalizing behavior problems, depression, and dissociation compared to youth victimized by a caregiver. For physical trauma, victimization by a non-caregiver was also associated with higher posttraumatic symptoms and internalizing behavior problems. The total number of trauma types experienced and age of physical or sexual trauma onset also predicted several outcomes for both groups, although in disparate ways. These findings are consistent with other recent studies demonstrating that perpetration of abuse by caregivers results in fewer symptoms and problems than abuse perpetrated by a non-caregiving relative. Thus, clinicians should not make a priori assumptions that children and adolescents who are traumatized by a parent/caregiver would have more severe symptoms than youth who are traumatized by a non-caregiver. Further exploration of the role of the perpetrator and other trauma characteristics associated with the perpetrator role is needed to advance our understanding of these findings and their implications for clinical practice.