Comparing Extracted and Stipulated Definitions in Algebra 1 Textbooks and "Khan Academy"

Autor/inn/en	Bayda, Nicholas Ivan; Sutliff, Grant
Titel	Comparing Extracted and Stipulated Definitions in Algebra 1 Textbooks and "Khan Academy"
Quelle	In: International Electronic Journal of Mathematics Education, 15 (2020) 2, (8 Seiten)Infoseite zur Zeitschrift PDF als Volltext kostenfreie Datei Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1306-3030
Schlagwörter	Mathematics; Definitions; Algebra; Mathematics Instruction; Textbooks; Middle School Mathematics; Grade 8; Mathematical Concepts + Suchen Sie Ihr Suchwort? Mathematik; Begriffsbestimmung; Mathematics lessons; Mathematikunterricht; Textbook; Text book; Schulbuch; Lehrbuch; School year 08; 8. Schuljahr; Schuljahr 08
Abstract	Previous research has established the importance of definitions in mathematics and have distinguished the difference between extracted and stipulated definitions. Much remains unknown, however, about the role definitions serve in developing students' disciplinary literacy. In this study, we analyze how definitions from four US Algebra 1 textbooks and "Khan Academy" define vocabulary in the context of quadratics. Results show that "Khan Academy" tends to use extracted definitions, where textbooks tend to use stipulated definitions. Implications from this study are that there is a need to teach students both stipulated and extracted definitions. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2022/1/01