教学目标是指教学活动实施的方向和预期达成的结果,是一切教学活动的出发点和最终归宿。《义务教育数学课程标准》指出,教师现有的教学应该从学生已有的知识经验出发,采用多种有效学习方式进行学习。所以,在设计教学目标时,还应该从学生的实际出发,以教材为准绳,以课程标准为水平尺,多角度、全方位地进行设计,这样才能保证教学目标最大化地落实到课堂教学中。 Teaching goal refers to the implementation of teaching activities in the direction and expected results are the starting point and final destination for all teaching activities. “Compulsory education mathematics curriculum standards,” pointed out that the existing teaching teachers should start from the existing knowledge of students, using a variety of effective learning methods to learn. Therefore, in the design of teaching objectives, but also from the students’ reality, the textbook as the yardstick, the curriculum standards for the level of feet, multi-angle, all-round design, so as to ensure the teaching objectives to maximize the implementation of the classroom teaching .