Supporting teacher professional development through online video case study discussions: An assemblage of preservice and inservice teachers and the case teacher

The purpose of this study was to explore the potential value of online video case discussions among preservice and inservice teachers, and the video case teacher as a tool for the professional development of teachers. Participants included a total of 26 preservice and inservice mathematics teachers and a veteran teacher who appeared on the video case. Using content analysis techniques, we provided a thematic analysis of the teacher discourse and demonstrated the exchanges between the participating teachers and video case teacher. We also assessed the overall effectiveness of our online forum set up for the professional development of teachers. Results indicated that participant teachers were able to make theory–practice connections by articulating specific frameworks that guided our study. The inclusion of the video case teacher was beneficial for the other teachers in several ways. We contend that online forum discussions of video cases in which collective engagement of preservice and inservice teachers, and the case teacher have a great potential to support teacher professional development.     

Searching for Components of Conceptual Ecology That Mediate Development of Epistemological Beliefs in Science

This paper articulates the importance of epistemological beliefs (EBs) and draws a parallel between EBs literature in educational psychology and nature of science (NOS) literature in science education. The paper stresses that EBs in science and NOS ideas have common ground and they can be best improved through explicit-reflective instruction informed by conceptual change theory. The paper concludes that future studies should explore the factors that mediate the development of EBs in science and NOS ideas rather than documenting the changes in students’ and teachers’ EBs in science and NOS ideas after explicit-reflective instruction through pre- and post assessments.     

Metaconceptually-enhanced simulation-based inquiry: effects on eighth grade students’ conceptual change and science epistemic beliefs

This study investigated the effects of metaconceptually-enhanced, simulation-based inquiry learning on eighth grade students’ conceptual change in science and their development of science epistemic beliefs. Two experimental groups studied the topics of motion and force using the same computer simulations but with different simulation guides: one enhanced with metaconceptual scaffolding, while the other was not. The findings led to the following conclusions: (a) metaconceptual scaffolding enhanced simulation-based learning by significantly reducing science misconceptions, but it was not as effective in changing students’ mental models which consisted of multiple interrelated key concepts; (b) students’ beliefs about the speed of learning and the construction of knowledge were strong predictors of conceptual change learning outcomes; (c) epistemologically more mature students did not benefit more from metaconceptual interventions than those with less mature beliefs; (d) further interventions are needed to promote the development of students’ science epistemic beliefs in inquiry learning.     

Universality Without Uniformity: A Culturally Inclusive Approach to Sensitive Responsiveness in Infant Caregiving

Do caregivers in non‐Western communities adapt their behaviors to the needs of infants? This question reflects one of the most long‐standing debates on the universality versus culture‐specificity of caregiver–infant interactions in general and sensitive responsiveness to infants in particular. In this article, an integration of both points of view is presented, based on the theoretical origins of the sensitive responsiveness construct combined with the ethnographic literature on caregivers and infants in different parts of the world. This integration advocates universality without uniformity, and calls for multidisciplinary collaborations to investigate the complexities and nuances of caregiver–infant interactions in different cultures. Salient issues are illustrated with observations of infants (ages 7–31 months) in Mali, the Republic of Congo, and the Philippines.     

Development and evaluation of a case‐based digital learning tool about children's mathematical thinking for elementary school teachers (L‐TEST)

It is important for teachers of mathematics to know how pupils react to certain mathematical situations and what these reactions imply, in order to design more effective instructional environments based on their learning needs. This study reports the development processes of a digital learning tool (Learning Tool for Elementary School Teachers (L‐TEST)) that shows children's mathematical thinking for the ages of 4–11 years across certain problem situations. L‐TEST is designed as a support tool to be used in teacher education. A case‐based instructional model was used in designing the instructional tool. Video recordings were digitised to provide a rich environment where learners observe exemplary cases. These exemplified videos included children's mathematical development in the subjects of numbers and shapes, combined with discussions in line with the current research findings. Finally, a usability test for the learning tool was carried out.     

Kinematic and EMG activities during front and back squat variations in maximum loads

The aim of this study was to compare the musculature activity and kinematics of knee and hip joints during front and back squat with maximal loading. Two-dimensional kinematical data were collected and electromyographic activities of vastus lateralis, vastus medialis, rectus femoris, semitendinosus, biceps femoris, gluteus maximus and erector spinae were measured while participants (n = 12, 21.2 ± 1.9 years old) were completing front and back squat exercises with maximum loading. Paired sample t-test was used for comparisons between two techniques. Results showed that the electromyographic activity of vastus medialis was found to be greater in the front squat compared to the back squat during the ascending phase (P < 0.05, d = 0.62; 95% CI, ?15.0/?4.17) and the whole manoeuvre (P < 0.05, d = 0.41; 95% CI, ?12.8/?0.43), while semitendinosus (P < 0.05, d = ?0.79; 95% CI, 0.62/20.59) electromyographic activity was greater in the back squat during the ascending phase. Compared to the front squat version, back squat exhibited significantly greater trunk lean, with no differences occurring in the knee joint kinematics throughout the movement. Results may suggest that the front squat may be preferred to the back squat for knee extensor development and for preventing possible lumbar injuries during maximum loading.     

Elementary teachers’ perceptions about the effective features of explicit-reflective nature of science instruction

ABSTRACT

This qualitative study explored elementary teachers’ perceptions about the effective features of explicit-reflective nature of science (NOS) instruction. Our participants were four elementary teachers from a public charter school located in the Southwestern U.S.A. The four elementary teachers participated in an academic year-long professional development about NOS which consisted of NOS training and NOS teaching phases. After each phase of the professional development, we specifically asked our participants which features of the explicit-reflective NOS instruction they found effective in improving their NOS conceptions by presenting pre- and post-profiles of their NOS conceptions. We identified nine features perceived by the participants as effective components of explicit-reflective NOS instruction: (1) specific focus on NOS content, (2) participation in hands-on NOS activities, (3) introductory NOS readings, (4) multiple types/forms of reflection, (5) multiple exposure to NOS content, (6) structural consistency in the presentation of NOS content, (7) the evaluation of secondary NOS data from elementary students, (8) the analysis of national and state science standards in terms of NOS content, and (9) NOS teaching experience.     

Validation study of a method for assessing complex ill-structured problem solving by using causal representations

The important but little understood problem that motivated this study was the lack of research on valid assessment methods to determine progress in higher-order learning in situations involving complex and ill-structured problems. Without a valid assessment method, little progress can occur in instructional design research with regard to designing effective learning environments to facilitate acquisition of expertise in complex, ill-structured knowledge domains. In this paper, we first present a method based on causal representations for assessing progress of learning in complex, ill-structured problem solving and discuss its theoretical framework. Then, we present an experimental study investigating its validity against adapted protocol analysis. This study explored the impact of a massively multiplayer online educational game, which was designed to support an interdisciplinary STEM education on ninth-grade students’ complex, ill-structured problem solving skill acquisition. We identify conceptual similarities and differences between the two methods, present our comparative study and its results, and then discuss implications for diagnostics and applications. We conclude by determining how the two approaches could be used in conjunction for further research on complex and ill-structured problem solving.     

Perceived social support,quality of life and satisfaction with life in elderly people

The aim of this study examines the relationship between quality of life, satisfaction with life and multidimensional perceived social support in people aged 65 years and older. The implementation part of the study was carried out with elderly people living in the city center of Burdur, Turkey. Data were collected in March 2018 from 517 participants and then assessed. The results of the analyses revealed that perceived social support explained 11.7% of the total variance in the satisfaction with life, 22.1% of the total variance in the quality of life. In addition to, the perceived social support and the quality of life explained 28.6% of the total variance in the satisfaction with life. And the quality of life was the most influential variable on the satisfaction with life. The findings of this study suggest that making improvements to the elderly people social support and quality of life will increase their satisfaction with life.