Show simple item record

dc.contributor.authorDietiker, Leslieen_US
dc.contributor.authorRichman, Andrewen_US
dc.coverage.spatialRio de Janeiro, Brazilen_US
dc.date2018-01-04
dc.date.accessioned2018-08-17T12:46:24Z
dc.date.available2018-08-17T12:46:24Z
dc.identifier.citationL Dietiker, Andrew Richman. "When is an exploration exploratory?  A comparative analysis of geometry lessons.." The 2nd International Conference on Mathematics Textbook Research and Development (ICMT2) Conference. Rio de Janeiro, Brazil, 2017-05-07 - 2017-05-11
dc.identifier.urihttps://hdl.handle.net/2144/30805
dc.description.abstractThis paper presents a comparative analysis of two textbook lessons on the same topic from U.S. textbooks to learn how differently - designed “exploratory” lessons may structure content to enable or constrain student inquiry. One lesson, representative of a “reform - based” textbook, contains investigations of conditions of triangle congruence. The second is a “technology lab” on triangle congruence fro m a "traditional" textbook, the design of which is atypical for that textbook. Framing a lesson as a mathematical story, this analysis exposes three distinct ways that these lessons are different: (a) the proportion of the lesson in which mathematical questions remain unanswered, (b) the manner in which content unfolds to address each question, and (c) the way in which open mathematical questions overlap to increase the dynamically - changing number of questions that are pursued. This contrast of the two lessons illuminates how a lesson structure can prevent an "exploration" from being exploratory.en_US
dc.titleWhen is an exploration exploratory?  A comparative analysis of geometry lessonsen_US
dc.typeConference materialsen_US
pubs.elements-sourcemanual-entryen_US
pubs.notesEmbargo: Not knownen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, Wheelock College of Education & Human Developmenten_US
pubs.publication-statusAccepteden_US
dc.identifier.orcid0000-0002-5331-1334 (Dietiker, L)


This item appears in the following Collection(s)

Show simple item record