教师深入钻研教材,采用合适的教学方法,是改进教学、提高教学质量的重要关键。所以越是有经验的教师,越是重视对教材的钻研。笔者从教学实践中体会到,数学教师对于教材的钻研,可按发掘、批判和创新三个层次进行。 Teachers’ in-depth study of teaching materials and the use of appropriate teaching methods are key to improving teaching and improving teaching quality. Therefore, the more experienced teachers, the more attention is paid to the study of teaching materials. The author understands from the teaching practice that mathematics teachers can carry out research on teaching materials in three levels: excavation, criticism and innovation.