新课程标准指出:数学教育要面向全体学生,实现人人学有价值的数学。人人都获得必需的数学,不同的人在数学上得到不同的发展。在数学教学中,创设一个轻松、愉快、生动、和谐的教学情境,营造良好的学习氛围,使学生不由自主地进入角色,积极主动地参与活动有着十分重要的作用。那么,怎 The new curriculum standard states: Mathematics education should be aimed at all students to achieve valuable mathematics for everyone. Everyone has acquired the necessary mathematics, and different people have been given different developments in mathematics. In mathematics teaching, creating a relaxed, pleasant, vivid and harmonious teaching situation, creating a good learning atmosphere, enabling students to enter the role involuntarily, actively participating in activities has a very important role. So, how