颁布单位：[the University of Pittsburgh] |  颁布时间：2017 |  实施时间：2017 |  学科分类：[Preservice, Elementary, Science, TeachersElementary, Science, Lesson, PlanningPreservice, Teacher, Planning, SciencePreservice, Teacher, Science, EducationLearning, Cycle, Elementary, ScienceLearning, Goals, Elementary, Science]

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