《义务教育数学课程标准》指出:要从学生的生活经验和已有的知识背景出发,重视情境在教学中的重要作用。所以,创设有效的教学情境是提高课堂教学有效性的关键。在数学教学中,教师要做有心人,要不失时机地创设与学生生活环境、知识背景密切相关的,又是学生感兴趣的学习情境,使学生在预设的情境中产生学习的欲望,感悟到数学的乐趣,从而主动有效地参与学习。那么,如何创设有效的教学情境呢?一、要选取现实的生活情境教师可以直接选取教材中学生熟悉的生活 “Compulsory education mathematics curriculum standards” pointed out: From the students’ life experience and existing knowledge background, attention to context important role in teaching. Therefore, creating effective teaching situations is the key to improving the effectiveness of classroom teaching. In mathematics teaching, teachers should be conscientious people, to seize the opportunity to create and students living environment, the knowledge background is closely related to the students are interested in learning situations, so that students in the pre-set situations have the desire to learn, perception of mathematics The fun to take the initiative to effectively participate in learning. So, how to create an effective teaching situation? First, we must select the real life situations Teachers can directly select the materials familiar to students life