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Students’ reasoning strategies in proportional reasoning
problems
Kait Kleemann, Oru School
Jüri Kurvits, Tallinn University, University of Helsinki
Summary
Proportional reasoning has been described as a watershed concept, a cornerstone
of higher mathematics. Proportionality is a fundamental concept
in middle grades mathematics and plays a critical role in students’ mathematical
development. It has important implications for higher-level mathematics
and can be seen as a link between elementary school arithmetic and
the more abstract high school mathematics. Furthermore, it is not only important
in mathematics but also in our everyday life as many situations revolve
around the idea of ratio and proportion.
In this paper we focus on the reasoning strategies that middle grades students
use when solving proportional word problems. In addition, we discuss
the concept of proportional reasoning and briefly describe the developmental
trajectory of proportional reasoning.
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