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Nemirovsky, Ricardo; Ferrara, Francesca; Ferrari, Giulia; Adamuz-Povedano, Natividad – Educational Studies in Mathematics, 2020
This paper focuses on the emergence of abstraction through the use of a new kind of motion detector--WiiGraph--with 11-year-old children. In the selected episodes, the children used this motion detector to create three simultaneous graphs of position vs. time: two graphs for the motion of each hand and a third one corresponding to their…
Descriptors: Motion, Algebra, Mathematics Instruction, Computer Software
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Wells, Pamela J. – Mathematics Teaching in the Middle School, 2015
Linear functions are an important part of the middle school mathematics curriculum. Students in the middle grades gain fluency by working with linear functions in a variety of representations (NCTM 2001). Presented in this article is an activity that was used with five eighth-grade classes at three different schools. The activity contains 15 cards…
Descriptors: Secondary School Mathematics, Middle School Students, Grade 8, Mathematics Instruction