在实际教学中,教师都有这样的疑问:挑选怎样的作业才能适应不同层次学生的需要?怎样设计作业结构才能有效地促进学生的数学学习?要回答上述问题,首先应该明确作业的功能,再在此基础上根据教学要求以及学生的具体情况对作业进行设计,最后再把设计好的作业布置给学生,要设计出高效的数学作业,应该遵循以下四个原则: In practical teaching, teachers all have such questions: How to select the homework to adapt to the needs of students at different levels? How to design homework structure can effectively promote students’ math learning? To answer these questions, we should first clear the function of homework, and then On this basis, according to the teaching requirements and the specific circumstances of students to design homework, and finally layout the designed homework to students, to design efficient math homework, we should follow the following four principles: