2008
DOI: 10.1163/9789460911422
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Fractions, Percentages, Decimals and Proportions

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Cited by 37 publications
(12 citation statements)
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“…At the beginning of the basic session, the instructor stressed the importance of students’ conceptual understanding for teaching mathematics (e.g., Padberg, 2009; van Galen et al, 2008). Accordingly, the first block was dedicated mainly to conceptual aspects of fractions, such as the operator concept and the part–whole concept (e.g., Lamon, 2006; Wartha, 2009).…”
Section: Methodsmentioning
confidence: 99%
“…At the beginning of the basic session, the instructor stressed the importance of students’ conceptual understanding for teaching mathematics (e.g., Padberg, 2009; van Galen et al, 2008). Accordingly, the first block was dedicated mainly to conceptual aspects of fractions, such as the operator concept and the part–whole concept (e.g., Lamon, 2006; Wartha, 2009).…”
Section: Methodsmentioning
confidence: 99%
“…Moreover, they should be able to do some (context-bound) calculations with those mathematical objects (CITO, 2013). During the teaching of proportion there is an emphasis on working with a ratio table, which either is given to students or they must recognize when it might be useful (Van Galen et al, 2005). As such, there is a large emphasis on applying learned rules and strategies instead of developing a deep understanding of proportion.…”
Section: Theoretical Backgroundmentioning
confidence: 99%
“…At an early stage of learning, representation models should be, according to van Galen et al (2008), very close to contextualised situations, but as schooling progresses, they should allow students to reason beyond a concrete situation. They suggest, therefore, the gradual replacement of "models of concrete situations by models for thinking" (p. 18), which they exemplify with the use and exploration of the double bar or the double number line with fractions, percentages, decimals, and proportions.…”
Section: Representations In Multiplicative Compa-risonmentioning
confidence: 99%