• School Mathematics
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• v.12 no.2
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• pp.137-150
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• 2010

This study has planned to understand the counting ability of mathematical low achievers(MLAs) in low grades of elementary school. For this, four MLAs of second graders were chosen as a experimental group and four MLAs of fourth graders and two mid-achievers of second grades were chosen as a comparison group. Every students were individually interviewed and their data were analyzed with three respects: accuracy, speed, efficiency. The results are the following three. First, the experimental group is still not used to counting. They counted slowly, made many mistakes and errors, and used inefficient strategies during counting. Second, It is hard to expect natural improvement of their counting performance as growing up. Finally, the explicit correlation between counting ability and arithmetic ability is not drown in this study, but the possibility still remains. These results tell us that we need to stress counting activity to MLAs when they are low graders.