After selecting and processing, a part of them, as the research-based tasks, could become the materials of teaching mathematical knowledge in classroom.
经过筛选和加工，其中有的可以作为“探究性课题”，成为数学课堂教学的学习材料。
After selecting and processing, a part of them, as the research-based tasks, could become the materials of teaching mathematical knowledge in classroom.
经过筛选和加工，其中有的可以作为“探究性课题”，成为数学课堂教学的学习材料。
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