设计练习要注意根据大纲要求、教材的内容和特点、学生的认知基础和认识规律,科学规划,认真指导,妥善安排。具体要求应考虑以下几个原则: 一、目标性原则 教学目标也是学生的学习目标,练习设计应该受教学目标的制约。只有根据教学目标设计出来的练习,才有可能做到少而精,精而当,以一当十。怎样来考虑目标性原则呢,一要看目标的大小范围。如:一学期的评价测试就得依据学期目标;单元练习就得参照单元目标;课堂练习就得按照课时目标。二要看目标的分级水平。就认知领域而言,教学目标分为三级,即认识、 Design practice should pay attention to the outline requirements, the content and characteristics of teaching materials, students' cognitive basis and understanding of the law, scientific planning, careful guidance and proper arrangements. Specific requirements should consider the following principles: First, the principle of the goal of teaching objectives are also the learning goals of students, practice design should be subject to the teaching objectives. Only according to the teaching objectives of the design exercises, it is possible to do less and fine, refined and when, as a ten. How to consider the principle of the goal, one depends on the size of the target range. Such as: a semester evaluation test must be based on the semester goals; unit exercises have to reference the unit goals; classroom practice has to follow the lesson goal. Second, look at the target level of grading. In terms of cognitive field, the teaching goal is divided into three levels, namely, understanding,