One special characteristic of any exponential growth or decay function f(t) = Ab[superscript t] is its unique doubling time or half-life, each of which depends only on the base "b". The half-life is used to characterize the rate of decay of any radioactive substance or the rate at which the level of a medication in the bloodstream decays as it is…

Teaching Opportunities for Partners in Science (TOPS) is an outreach program using volunteers (the "partners") for: 1) assisting teachers in grades K-8 with preparation and delivery of science and engineering (S&E) lessons in the classroom; 2) providing content knowledge to teachers when needed to teach quality science and…

Based on an analysis of occupational competence in teaching and teacher education, this article draws together a set of dilemmas that face the field, arguing that an occupational analysis is needed to complement the more common institutional analysis of teacher education. Then, this analysis is used to evaluate the prospects of the reforms that…

This study explores the relationship between teacher knowledge and student learning in the area of mathematics by developing and evaluating an innovative approach to assessing teacher knowledge. This approach is based on teachers' analyses of classroom video clips. Teachers watched 13 video clips of classroom instruction and then provided written…

Pre-service teacher education in England has been essentially school-based since 1992. The article offers a critique of this design from the perspective of a practitioner and researcher working in one of its most influential schemes. The fundamental problem described concerns an impoverished understanding of experience that underpins how beginning…

This paper attempts to shed light on the competencies a university teacher must have in order to teach in virtual learning environments. A teacher training experience was designed by taking into account the methodological criteria established in line with previous theoretical principles. The main objective of our analysis was to identify the…

The national educational initiative "Our New School" will have a direct influence on the content and technologies of pedagogical education in Russia, and is aimed at providing the system of general education with the qualified teachers who are currently needed. In this article, the author emphasizes that in connection with attributing…

Teachers' subject and pedagogical knowledge requires an understanding of the relationship between various elements, rather than thinking of them in isolation. In order to teach in a given discipline, the teacher must have knowledge of the subject, an understanding of the best teaching strategies for presenting the content, and knowledge of the…

This article examines distance education (DE) in the context to which is most frequently applied, i.e., higher education, and from the perspective of some of its most important actors, i.e., teachers. This study, of a qualitative nature, was conducted at a public university in Brazil. Data were collected by means of unstructured interviews,…

In this article, the author explores one issue that he believes is central to the preparation of teachers to teach in democratic societies: the question of who should prepare teachers to do this important work. Currently, there are basically two general approaches to the preservice education of teachers in the United States despite all the program…

Written lesson appraisals (WLAs) by mentors (n = 30) of pre-service teachers experiencing two different mentoring regimes in an English university teacher education programme were selected for analysis. The WLAs were analysed for their length and content using professional knowledge categories derived from pre-service teacher perceptions of the…

The construction of a pedagogy of teacher education requires a sustained, systematic, and careful inquiry into one's own practice, predicated on the understanding that teaching is a discipline. This article begins by arguing that it is more appropriate to speak of a basis for knowing, rather than a knowledge base, for thinking about teaching and…

In this paper, we describe a model for systematically improving the mathematics preparation of elementary teachers, one lesson at a time. We begin by identifying a serious obstacle for teacher educators: the absence of mechanisms for developing a shareable knowledge base for teacher preparation. We propose our model as a way to address this…

This study is a survey and interpretation of professional development literature related to professional learning communities (PLCs) in schools. Current K 12 trade publications focusing on PLCs were analyzed against four different theoretical models of professionalism. Each model encourages and legitimates a different understanding of the…

The study reported in this article is part of a research project which intended to attain a more comprehensive understanding of the growth and transformations of the professional identity and knowledge of a group of four future language teachers, as they expanded their awareness about plurilingualism and intercomprehension. Based on a central…