数学是基础教育重要学科之一,需要花费大量的精力和时间进行学习,特别在年终考核阶段,部分学校的师生更是陷入“教师累、学生苦、负担重、效率低”的困境。因此,高效率的教学方法成为广大小学数学教师的一个重要的探究目标。笔者在长期的数学教学实践中,针对复 Mathematics is one of the important disciplines in basic education. It takes a great deal of energy and time to learn. Especially in the year-end assessment stage, teachers and students in some schools fall into the predicament of “teachers are tired, students are burdened, they are heavy, and they are inefficient” . Therefore, the efficient teaching method has become an important research goal for the majority of primary school mathematics teachers. The author in the long-term teaching practice of mathematics, for complex