练习设计不仅可以帮助学生理解、巩固、掌握所学知识,形成熟练的技能、技巧,还可以使学生的创新意识得到培养,创新思维得到发展,综合素质得到提高。教师要教学过程中积极创设一题多解、一题多问、一题多变、一题多编的开放题,来培养学生的创造性思维,从而更加有效地实施开放性教学。1.已知条件需开放。开放性教学中练习设计时,我提供给学生的练习、条件一般都是多元的、有选择的、答案不惟一的习题。在学习“整十数笔算除法” Practice design can not only help students understand, consolidate, master what they have learned and form skilled skills and skills, but also enable students to cultivate their innovative ideas, develop innovative thinking and improve their overall quality. In the process of teaching, teachers should actively create an open question with multiple answers, multiple questions, multiple questions, and multiple questions and open questions so as to cultivate students’ creative thinking so that they can implement open teaching more effectively. 1. Known conditions need to be open. Open practice teaching practice, I provide exercises for students, the conditions are generally diverse, selective, the answer is not unique exercises. Learning “the whole number of ten divisions ”