What Details Do Teachers Expect From Student Proofs? A Study of Proof Checking in Geometry

Autor:	Patricio Herbst, Justin K. Dimmel
Rok vydání:	2018
Předmět:	Mathematics (miscellaneous) Computer science 0502 economics and business 05 social sciences Proof checking Calculus Mathematics education 050301 education Mathematical proof 0503 education 050203 business & management Education
Zdroj:	Journal for Research in Mathematics Education. 49:261-291
ISSN:	1945-2306 0021-8251
DOI:	10.5951/jresematheduc.49.3.0261
Popis:	We investigated how secondary mathematics teachers check student geometry proofs. From video records of geometry teachers checking proofs, we conjectured that teachers have different expectations for details that follow from written statements than for details that are conveyed by diagrams. To test our conjectures, we randomly assigned 44 secondary mathematics teachers to 1 of 3 experiment groups (n & 13, n & 15, n & 16) in which they viewed and rated representations of instructional practice. Participants in each group viewed treatment or control versions of instructional scenarios and rated the appropriateness of the teachers' work in different segments of each scenario. We compared participants' ratings across and within experiment groups. We found that participants rated lower instruction that deviated from what we hypothesized to be their expectations, confirming our hypotheses.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::82839c95a25356f0e698a505b3576c89 https://doi.org/10.5951/jresematheduc.49.3.0261 Zobrazit plný text záznamu