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创设情景,引导儿童对数量关系进行积极思索,找出规律,得出结论,是提高课堂教学效率的一种重要手段。教师在教学中应抓住时机,创设问题情境,使学生的新旧知识之间的矛盾或新旧发展水平之间的矛盾构成学生认识活动的内部矛盾,形成强烈的求知欲望,从而有效地调动学生思维活动的积极性。 在教学“面积的意义和面积单位”这节课时,我先让学生观察比较课桌面和黑板面的大小,再亲手触摸和用重迭法比较课本封面和作业本封面的大小,后观察比较老师画在小黑板上的两个正方形的大小,感
Creating scenarios to guide children to actively think about the relationship between quantity, to find out the law, to draw conclusions is an important means to improve the efficiency of classroom teaching. Teachers in teaching should seize the opportunity to create a problem situation so that the contradiction between the old and new knowledge of the students or the contradiction between the old and the new level of development constitute the internal contradictions of students' cognitive activities to form a strong desire for knowledge, so as to effectively mobilize the students thinking Activity enthusiasm. In teaching the “Area of Meaning and Area Unit”, I first asked students to observe the size of the comparison desk and blackboard. Then I touched and overlapped the size of the cover of the textbook and homework by overlapping method. Then I observed the comparative teacher The size of the two squares painted on the blackboard, feeling