A Graphical Method for Computing the Standard Error of Biserial r

Marsh and Hau reply briefly to remarkably diverse comments by Sivo and Willson (1998), Hoyle (1998), Markus (1998), Mulaik (1998), and others to their earlier article (Marsh &; Hau, 1996). Sivo and Willson provided a discussion of alternative–moving-average and autoregressive-moving-average–models that seemed only tangentially related to the Marsh and Hau article. Hoyle largely accepted Marsh and Hau's major contentions, but proposed an alternative representation of parsimony. Markus provided a highly literary and entertaining looking-glass perspective as a dialogue involving himself, Tweedledum, Tweedledee, the Cheshire Cat, and the Mad Hatter from Lewis Carroll's Wonderland in which he compared SM (Stan Mulaik) and SM (Straw Man) propositions. This was followed logically by Mulaik's righteous outrage with Marsh and Hau's total lack of understanding of parsimony as espoused by Mulaik and his (Occam's) razor gang, all but threatening “Off with their heads,” in the vein of yet another Lewis Carroll character, to which Marsh and Hau respond with an analogy from another literary work–The Emperor's New Clothes–and a rapprochement/compromise.     

How Constructivist-Based Teaching Influences Students Learning Science

The purpose of this article is to provide details about the beneficial processes the constructivist pedagogy has in the area of teaching science. No Child Left Behind could possibly cause detrimental effects to the science classroom and the constructivist teacher, so this essay tells how constructivist-based teaching influences students and their learning of science.     

Sources of differential participation rates in school science: the impact of curriculum reform

School science courses have widely varying participation rates across a range of student characteristics. One of the stated aims of the 2006 Key Stage 4 science curriculum reforms in England was to improve social mobility and inclusion. To encourage students to study more science, this reform was followed by the introduction in 2008 of an entitlement to study the three separate sciences at Key Stage 4 for the more highly attaining students. This paper uses longitudinal national data over a five‐year period to investigate the extent and change of participation across science courses at KS4, focusing on student gender and socio‐economic status. It finds that whilst there is some evidence of a move towards a more equitable gender balance for some courses, there is as yet little evidence of substantial change in differential participation rates by socio‐economic status.     

By design: Professional learning ecologies to develop primary school teachers’ makerspaces pedagogical capabilities

Makerspaces embody a growing movement of educators promoting constructionist learning with physical materials and digital technologies such as 3D design and 3D printing. As it gains traction in K-12 settings, the maker movement represents an interesting context in which to explore how professional ecologies can equip teachers with the knowledge, skills and dispositions needed to implement twenty-first century learning in their school context. This study investigated the roles of different participants from industry, school leadership and colleagues in influencing teachers’ confidence, enthusiasm, capabilities and beliefs when teaching in makerspaces. Utilising triangulated observations of activities through online questionnaires at beginning, middle and end points, as well as postproject interviews, the study explored the participation of 27 primary school teachers in a blended professional learning programme, followed by classroom delivery of modules focusing on tablet-based 3D design applications and the use of newly instaled 3D printers. Reporting no prior knowledge or experience with makerspaces, quantitative analyses revealed significant increases in teachers’ confidence and enthusiasm. Qualitative analyses of questionnaire and interview data underscored the influence of hands-on and theoretically grounded professional learning providing practical exposure to constructionist ideas, design thinking methodologies and 3D design technologies. Findings reveal the importance of targeted professional learning coupled with a substantial collegially supported implementation phase, as well as support from school leaders and industry partners to promote meaningful pedagogical change in technology-mediated maker-based learning.     

Knowledge management support for teachers

Business organizations worldwide are implementing techniques and technologies to better manage their knowledge. Their objective is to improve the quality of the contributions people make to their organizations by helping them to make sense of the context within which the organization exists; to take responsibility, cooperate, and share what they know and learn; and to effectively challenge, negotiate, and learn from others. We consider how the concepts, tools, and techniques of organizational knowledge management can be applied to the professional practices and development of teachers. We describe a framework for knowledge management support for teachers where the sharing of concrete knowledge scaffolds the attainment of more abstract levels of knowledge sharing. We describe the development of a knowledge management support system emphasizing long-term participatory design relationships between technologists and teachers, regional cooperation among teachers in adjacent school divisions, the integration of communication and practice, synchronous and asynchronous interactions, and multiple metaphors for organizing knowledge resources and activities. This work was supported by the National Science Foundation, REC-0106552.     

“Picturing Them Right in Front of Me”: Guidelines for Implementing Video Communication in Online and Blended Learning

We provide actionable strategies that teachers can follow when implementing asynchronous video communication and feedback in their own courses. These strategies are based on our own research over many years in the use of asynchronous video in online teaching, as well as our review of the literature, and are provided to foster greater discussion on the pedagogical strategies surrounding the use of video in online teaching.