很多的教师认识到提高学生学习质量 ,要从提高四十五分钟的课堂教学效率着手。在教学中培养学生的有意注意是提高学生有意义学习的重要途径 ,也是提高课堂效率的有效途径。学生按一定的意向去感知外界的事物、符号、声音等信息 ,经过大脑的分析、综合、判断、推理达到理性的认 Many teachers recognize that to improve the quality of students’ learning, we should start with improving the classroom teaching efficiency by 45 minutes. It is an important way to improve students ’meaningful learning in the process of cultivating students’ intentional attention in teaching and is also an effective way to improve classroom efficiency. Students according to a certain intention to perceive the outside world things, symbols, sounds and other information, through the brain’s analysis, synthesis, judgment, reasoning to recognize the rational