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在解决问题教学中“一步是基础,两步是关键”。两步计算的解决问题在整个解决问题教学中起着承上启下的作用,它是学生学习解决问题过程中的一个转折,是解题思维方法上的一次突破。
In solving problem teaching “one step is the foundation, two steps are the key ”. The solving problem of two-step calculation plays a role in the entire problem-solving teaching. It is a turning point in the process of students’ learning and solving problems, and is a breakthrough in solving the thinking method.