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A teacher’s use of dynamic digital technology to address students’ misconception about additive strategies for geometric similarity

Simsek, A; Hoyles, C; Clark-Wilson, A; (2021) A teacher’s use of dynamic digital technology to address students’ misconception about additive strategies for geometric similarity. In: Proceedings of The 14th International Congress on Mathematical Education. East China Normal University: Shanghai, China. Green open access

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Abstract

Research has well documented that students develop a significant misconception associated with the incorrect use of additive strategies when engaging with geometric similarity (GS) tasks. Since dynamic digital technology (DDT) has the potential to support students in addressing this misconception, teachers can exploit the affordances of DDT in the classroom to accomplish it. The aim of this paper is to explore how and why a secondary mathematics teacher uses DDT in the classroom to promote students’ understanding of why additive strategies are inappropriate to use for GS tasks. Drawing on the data collected, through classroom observations and post-lesson teacher interviews, the research findings indicate that the dynamic and visual nature of DDT can be used to help students realise the inappropriateness of the use of additive strategies for GS tasks.

Type: Proceedings paper
Title: A teacher’s use of dynamic digital technology to address students’ misconception about additive strategies for geometric similarity
Event: The 14th International Congress on Mathematical Education
Location: Shanghai, China
Dates: 11 July 2021 - 18 July 2021
Open access status: An open access version is available from UCL Discovery
Publisher version: https://www.icme14.org/static/en/index.html
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education > IOE - Culture, Communication and Media
URI: https://discovery.ucl.ac.uk/id/eprint/10115606
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