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新课标指出:数学教学活动,特别是课堂教学应激发学生兴趣,调动学生积极性,引发学生的数学思考,鼓励学生的创造性思维。学生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。在完成教学目标的同时,要使课堂生动活泼,使不同层次的学生都参与到数学教学活动中,成为课堂学习的主人,这就需要改变陈旧的教学方式。所以开放式教学将成为一种新的数学教学方式。
The new curriculum standard pointed out: Mathematics teaching activities, especially classroom teaching should stimulate student interest, mobilize the enthusiasm of students, triggering students ’mathematical thinking, to encourage students’ creative thinking. Students’ math learning activities should be a lively, active and personalized process. While accomplishing the teaching goal, it is necessary to make the classroom lively and vivid, so that different levels of students participate in the teaching activities of mathematics and become the masters of classroom learning, which requires changing the old teaching methods. Therefore, open teaching will become a new way of teaching mathematics.