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ERIC Number: EJ1142213
Record Type: Journal
Publication Date: 2017
Pages: 14
Abstractor: As Provided
ISSN: ISSN-1744-2710
Redesigning Task Sequences to Support Instrumental Genesis in the Use of Movable Points and Slider Bars
Fahlgren, Maria
International Journal for Technology in Mathematics Education, v24 n1 p3-16 2017
This paper examines the process of instrumental genesis through which students develop their proficiency in making use of movable points and slider bars--two tools that dynamic mathematics software provides for working with variable coordinates and parameters in the field of functions. The paper analyses students' responses to task sequences designed to support a planned instrumental genesis and then examines how features of these task sequences might be modified accordingly to improve such support. Evidence about student responses was collected during the first iteration of a design-based research study conducted in collaboration with four upper secondary school teachers. Three task sequences were trialed with four 10th grade classes, involving a total of 85 students. Orchestration and examination of the instrumental genesis were guided by the identification of key elements--both conceptual and technical--of the instrumented action schemes involved.
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Publication Type: Journal Articles; Reports - Research
Education Level: Secondary Education; Grade 10; High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Sweden
Grant or Contract Numbers: N/A