让有效的教学情境激发、唤醒、鼓励学生,促使学生积极思考、主动学习,是小学生寻求数学规律的理想通道,也是新课程标准实施以来人们共同思考的问题。 It is an ideal channel for primary school students to seek the law of mathematics and an issue that people think together since the implementation of the new curriculum standard, so that effective teaching situations can stimulate, awaken and encourage students to promote positive thinking and active learning.