Get Discourse Perspective of Geometric Thoughts PDF

By Sasha Wang

ISBN-10: 3658128046

ISBN-13: 9783658128043

ISBN-10: 3658128054

ISBN-13: 9783658128050

Sasha Wang revisits the van Hiele version of geometric considering with Sfard’s discursive framework to enquire geometric pondering from a discourse point of view. the writer makes a speciality of describing and interpreting pre-service academics’ geometric discourse throughout varied van Hiele degrees. The explanatory energy of Sfard’s framework offers a wealthy description of ways pre-service academics imagine within the context of quadrilaterals. It additionally contributes to our figuring out of human considering that's illustrated throughout the research of geometric discourse observed by way of vignettes.

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Extra resources for Discourse Perspective of Geometric Thoughts

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They argue that how a student considers and uses the processes is an indicator of the student’s level of reasoning at each van Hiele level. For instance, at Level 1, recognition is limited to physical, global attributes of the figures. Students sometimes use geometric vocabulary, but these terms have a visual meaning more than a mathematical meaning. ” In other cases, they are able to notice some mathematical properties of figures, but they are simple properties, such as the number of sides. However, Gutierrez and Jaime also note that the ability of recognition does not discriminate among students in the van Hiele levels 2, 3, or 4.

In this study, when participants identify and classify polygons, mathematical regularities are noticed through the interactions. It sheds a light on participants’ use of mathematical words and it helps to determine if they follow the process of identifying, defining, and substantiating narratives about geometrical shapes. A Routine can be divided into two subsets—the how of a routine, and the when of a routine (Sfard, 2008, p. 208): The how of a routine: a set of meta-rules that determine the course of the patterned discursive performance (the course of routine, or procedure); the when of a routine: a collection of meta-rules that determine those situations in which the participants would deem this performance as appropriate.

At Level 4 (deduction), visual skills focus on using information about a figure to deduce more information. 15). Hoffer’s framework suggested that in developing geometric reasoning various geometric skills might be expected at different van Hiele levels of thinking. Other “level indicators” suggested by Burger and Shaughnessy (1986), describe the five levels as visualization, analysis, informal deduction, formal deduction, and rigor, for Levels 0 through 4, respectively. Using Burger and Shaughnessy’s level indicators, Crowley (1987) provided additional examples of level-specific responses (except for Level 5) concerning how students would argue a given shape is a rectangle (p.

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Discourse Perspective of Geometric Thoughts by Sasha Wang


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