Student Understanding of Number Line Graphs
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This paper addresses how students understand number line graphs. Utilizing a Think Aloud interview followed by a reflection-eliciting interview, we investigate how two successful College Algebra students understand what it means to graph a statement with one free variable on a number line. These particular students show a mathematically non-normative understanding of this concept; to wit, they do not view the number line graph as representing a solution set. This study illustrates the importance of future research into how students understand the concept of solution representation via number line graphs.
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2012 ◽
Vol 10
(6)
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pp. 1393-1414
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2014 ◽
Vol 599-601
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pp. 1566-1570
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