凡是具备解题条件不充分,结论不唯一或方法多样性三个特点之一的试题,都称之为开放性试题,开放性试题思维空间大,灵活性强,不拘泥于教材,情景新,探究性强,解答途径多样灵活,能考查学生的创造性思维和创新能力,分析解决实际问题的能力,引导学生学以致用,鼓励学生标新立异,张扬个性.对于培养学生的发散思维能力,具有极其重要的作用.学生可以根据自己的认知水平和学习能力对问题发表不同的见解,从不同的角度、不同的侧面、 Any questions that have insufficient solution conditions, inconclusive conclusions, or one of the three characteristics of method diversity are called open questions. The open questions have a wide range of thinking and flexibility. They are not rigidly adhered to textbooks and have new scenarios. Strong in inquiry, flexible in solutions, able to examine students’ creative thinking and creative ability, analyze the ability to solve practical problems, guide students to apply their knowledge, encourage students to make a difference, promote individuality, and are extremely important for cultivating students’ divergent thinking ability. The role of students. According to their own cognitive level and learning ability to issue different opinions on the issue, from different perspectives, different aspects,