Applying Quantitative Reasoning to Clarify Arc Measurements

The importance of reasoning quantitatively is reflected in both mathematics education research and mathematical standards for K-12 students. In this article, we detail how a quantitative reasoning framework can be used to help differentiate two quantities we have found students often struggle with:...

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Bibliographic Details
Main Authors: David Glassmeyer, Daniel Barton
Format: Article
Language:English
Published: Georgia Southern University 2020-01-01
Series:Georgia Educational Researcher
Subjects:
Online Access:https://digitalcommons.georgiasouthern.edu/gerjournal/vol17/iss1/1
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spelling doaj-d9e72bcd6b2f45c697deff0b3d49f3332020-11-25T01:19:54ZengGeorgia Southern UniversityGeorgia Educational Researcher2471-00592020-01-0117110.20429/ger.2020.170101Applying Quantitative Reasoning to Clarify Arc MeasurementsDavid GlassmeyerDaniel BartonThe importance of reasoning quantitatively is reflected in both mathematics education research and mathematical standards for K-12 students. In this article, we detail how a quantitative reasoning framework can be used to help differentiate two quantities we have found students often struggle with: arc length and the measure of a central angle. We argue that taking the time to define all four components of a quantity can support students’ understanding of theorems involving these quantities.https://digitalcommons.georgiasouthern.edu/gerjournal/vol17/iss1/1quantitative reasoninggeometry
collection DOAJ
language English
format Article
sources DOAJ
author David Glassmeyer
Daniel Barton
spellingShingle David Glassmeyer
Daniel Barton
Applying Quantitative Reasoning to Clarify Arc Measurements
Georgia Educational Researcher
quantitative reasoning
geometry
author_facet David Glassmeyer
Daniel Barton
author_sort David Glassmeyer
title Applying Quantitative Reasoning to Clarify Arc Measurements
title_short Applying Quantitative Reasoning to Clarify Arc Measurements
title_full Applying Quantitative Reasoning to Clarify Arc Measurements
title_fullStr Applying Quantitative Reasoning to Clarify Arc Measurements
title_full_unstemmed Applying Quantitative Reasoning to Clarify Arc Measurements
title_sort applying quantitative reasoning to clarify arc measurements
publisher Georgia Southern University
series Georgia Educational Researcher
issn 2471-0059
publishDate 2020-01-01
description The importance of reasoning quantitatively is reflected in both mathematics education research and mathematical standards for K-12 students. In this article, we detail how a quantitative reasoning framework can be used to help differentiate two quantities we have found students often struggle with: arc length and the measure of a central angle. We argue that taking the time to define all four components of a quantity can support students’ understanding of theorems involving these quantities.
topic quantitative reasoning
geometry
url https://digitalcommons.georgiasouthern.edu/gerjournal/vol17/iss1/1
work_keys_str_mv AT davidglassmeyer applyingquantitativereasoningtoclarifyarcmeasurements
AT danielbarton applyingquantitativereasoningtoclarifyarcmeasurements
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