求翻译：著名教育家陶行之先生提倡小先生制，鼓励学生当小老师教同伴学习。当代学者对合作学习理论的实践探索和系统研究开始于 20 世纪 80 年代末。是什么意思？

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renowned educator pottery line, promote small, systems, and to encourage students when the teacher peer learning. Contemporary scholars of cooperative learning theory of practice and exploration and study began in the 1980s.

Gentleman of the renowned educationalist ceramic line advocates the child teacher system, encourages the student when young teacher teaches the companion to study.The contemporary scholar starts to the cooperation study theory practice exploration and the system research in the end of 1980s.

Mr Tao Hang advocate of small business, the famous educator and students when the teachers are encouraged to teach peer learning. Contemporary scholars ' study on the practice and exploration of the theory of cooperative learning and systems started in the late 1980 of the 20th century.

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