题目内容：
教师在教学生掌握科学概念时，一般多采用“变式”，其目的主要是( )
A.激发兴趣
B.引起注意
C.丰富想象
D.区分本质特征与非本质特征
参考答案：
答案解析：
选择题：教师在教学生掌握科学概念时，一般多采用“变式”，其目的主要是( )
- 题目分类：教师资格
- 题目类型：选择题
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