dc.contributor.author | Okumuş, Samet | |
dc.contributor.author | Hollebrands, Karen | |
dc.date.accessioned | 2020-12-19T19:35:45Z | |
dc.date.available | 2020-12-19T19:35:45Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Okumuş, S. & Hollebrands, K. (2019). Middle school students' employments of gestures for forming three-dimensional objects using an extrusion or spinning method. Journal of Mathematical Behavior, 56, 100737. https://doi.org/10.1016/j.jmathb.2019.100737 | en_US |
dc.identifier.issn | 0732-3123 | |
dc.identifier.issn | 1873-8028 | |
dc.identifier.uri | https://doi.org/10.1016/j.jmathb.2019.100737 | |
dc.identifier.uri | https://hdl.handle.net/11436/1341 | |
dc.description | Okumus, Samet/0000-0001-5905-196X; Hollebrands, Karen/0000-0001-8266-1467 | en_US |
dc.description | WOS: 000504919800010 | en_US |
dc.description.abstract | This case study addresses how middle school students use gestures concomitant with verbal expressions to relate the features of two- and three-dimensional objects. Eight students (five girls and three boys) participated in the study. Students (12-14 years old) used hands-on manipulatives and a dynamic geometry program, Cabri 3D, to form three-dimensional objects from two-dimensional figures using extrusion or spinning. Students used gestures to describe missing elements of three-dimensional objects that were not represented in the tools. During the extrusion activities, students' pointwise and objectwise gestures provided a visual representation for the edges and lateral faces/surfaces of three-dimensional objects. During the spinning activities, some students had difficulty relating the features of two- and three-dimensional objects. Some students employed gestures accompanied by verbal expressions to demonstrate the circular and continuous motion of spinning as well as to represent the lateral surfaces of three-dimensional objects. These gestures stood for the missing (unrepresented) elements of three-dimensional objects in hands-on manipulatives and Cabri 3D when students formed three-dimensional objects using an extrusion or spinning method. | en_US |
dc.description.sponsorship | Direct For Education and Human ResourcesNational Science Foundation (NSF)NSF- Directorate for Education & Human Resources (EHR) [1712280] Funding Source: National Science Foundation | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier Science Inc | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Three-dimensional objects | en_US |
dc.subject | Extrusion | en_US |
dc.subject | Spinning | en_US |
dc.subject | Tools | en_US |
dc.subject | Pointwise and objectwise gestures | en_US |
dc.title | Middle school students' employments of gestures for forming three-dimensional objects using an extrusion or spinning method | en_US |
dc.type | article | en_US |
dc.contributor.department | RTEÜ, Eğitim Fakültesi, Matematik ve Fen Bilimleri Eğitimi Bölümü | en_US |
dc.contributor.institutionauthor | Okumuş, Samet | |
dc.identifier.doi | 10.1016/j.jmathb.2019.100737 | |
dc.identifier.volume | 56 | en_US |
dc.relation.journal | Journal of Mathematical Behavior | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |