幼児におけるたし算の方略

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書誌事項

タイトル別名
  • ヨウジ ニ オケル タ シザン ノ ホウリャク
  • The Strategy of Addition in Children

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説明

In this study, the process of addition in children was investigated. The subjects were 10 children of 6-7 years' age. I made them to sum up two 1-9 numbers. Our procedure was based on: (1) time needed for calculation, (2) interview of each subject, (3) our observation of the subjects. After one year, we made about the same experiment on 10 children of 7 years' age, including 5 same subjects. The result is as follows: 1. There are two patterns discernible: (1) those who depend on fingers, (2) those who depend on acquired art of addition, e.g. 6+6=12. 2. One year's study proved remarkable. 3. The subjects were accepting the decimal system without difficulty.

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