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为发挥学生在教学活动中的主体作用,教师的作用应是“以其所知,喻其不知,使其知之”,使学生养成勤于思考的习惯和学会善于思考的方法。小学数学教学宜从以下三个方面对学生进行因势利导:1．抓住新旧知识的转化条件,引导学生从旧知导出新知。引导方法上,既可先引后练,也可先练后引。例如,数学异分母分数加减法,我先通过复习,使通分与同分母分数加减法两部分旧知在学生脑子里再现,再引导学生把这两部分内容联系起来解决异分母分数加减法。具体过程:
To play the main role of students in teaching activities, the role of teachers should be “to the best of their knowledge, to let them know”, to enable students to develop diligent thinking habits and learn ways to think. Primary mathematics teaching students from the following three aspects should make the best use of the situation: 1. Grasp the transformation of old and new knowledge conditions, and guide students to derive new knowledge from the old knowledge. Guidance method, either after the first practice, but also after the first practice lead. For example, mathematical addition and subtraction of different denominators, I first review, so pass and the same denominator fraction addition and subtraction of two parts of the old knowledge in the minds of students to reproduce, and then guide students to link these two parts to solve the differences between the denominator of the addition and subtraction law. Specific process: