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tandfonline.com – Did consequential accountability policies decrease the share of visual and performing arts education in U.S. public secondary schools during the No Child Left Behind era?

Posted on by Troels Gannerup Christensen - Læst 23 gange

tandfonline.com har udgivet en rapport under søgningen “Teacher Education Mathematics”: Abstract Formulae display:?Mathematical formulae have been encoded as MathML and are displayed in this HTML version using MathJax in order to improve their display. Uncheck the box to turn MathJax off. This feature requires Javascript. Click on a formula to zoom. Abstract It has been asserted that the test-based accountability of No Child Left Behind (NCLB) increased instruction in tested subject areas reading and math, leading to reductions in arts education. We tested this using two waves of data, before and after NCLB implementation, in a difference-in-differences design. The analyses indicated that the total teacher workforce increased substantially during this time period, while the percentage of reading and math educators remained constant, leading to an overall increase in the teacher… Continue Reading →

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tandfonline.com – Assessing Students’ Understanding of Variability in Graphical Representations that Share the Common Attribute of Bars

Posted on by Troels Gannerup Christensen - Læst 29 gange

tandfonline.com har udgivet en rapport under søgningen “Teacher Education Mathematics”: ABSTRACT ABSTRACT Everyday encounters with graphical representations include a variety of graphs that superficially appear similar due to their use of bars. This article examines students’ conceptions and misconceptions regarding the interpretation of variability in histograms, bar graphs, and value bar charts. A multiple choice assessment with brief written justifications was administered to students in an introductory level college statistics course. Assessment items included comparisons of variability among same-type graphs and questions regarding students’ ability to identify key features of the graphs. The study revealed that students struggle to make sense of the underlying structures of the various types of graphs and often disregard graph type as they transfer correct conceptions of variability for one type of graph erroneously to… Continue Reading →