Development of a Web-based Courseware to Improve the Understanding of Numerical Concepts for Elementary Students with Learning Difficulties (초등학교 학습장애 학생의 수 개념 향상을 위한 웹 코스웨어 개발)
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- Journal of The Korean Association of Information Education
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- v.8 no.2
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- pp.141-153
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- 2004