Applying Quantitative Reasoning to Clarify Arc Measurements

Autor: David Glassmeyer, Daniel Barton
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Georgia Educational Researcher, Vol 17, Iss 1 (2020)
Druh dokumentu: article
ISSN: 2471-0059
DOI: 10.20429/ger.2020.170101
Popis: 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.
Databáze: Directory of Open Access Journals