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Galbraith, Peter – Australian Mathematics Education Journal, 2020
Recently a teacher friend enquired about the S-I-R equations for disease spread, and what follows was stimulated by that exchange. COVID-19 provides an opportunity to put mathematical flesh on verbal bones such as "self-isolation", "lockdown", "herd immunity", "flattening the curve", "closed…
Descriptors: Mathematical Models, Problem Solving, Computation, Evaluation Methods
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Xin, Yan Ping; Zhang, Dake – Journal of Educational Research, 2011
This article presents the authors' response to Asha K. Jitendra's Response to Xin and Zhang ("The Journal of Educational Research," 2009, Vol. 102, No. 6). The claim of "factual errors, including inappropriate quotes, misrepresentation of information, and inadequate scholarship in Xin and Zhang's text" are not justified. In this rejoinder, the…
Descriptors: Educational Research, Word Problems (Mathematics), Evaluation Methods, Teaching Methods
Feldt, Leonard S. – 1983
This paper considers, from a theoretical point of view, two measurement approaches used in measuring success and failure in skills tests in physical education. The first, "fixed length" (FL) testing, entails counting the number of successful performances in a fixed number of trials. The second, "trials-to-criterion" (TTC)…
Descriptors: Evaluation Methods, Mathematical Formulas, Mathematical Models, Measurement Techniques