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新《课程标准》指出:数学学习内容是现实的、有意义的、富有挑战性的。数学学习活动应当是一个生动活泼的、主动的和富有个性的过程。教师应激发学生的学习积
The new “curriculum standards” that: Mathematics learning content is realistic, meaningful and challenging. Mathematics learning activities should be a lively, active and personalized process. Teachers should stimulate students’ learning product