近几年来 ,开放型数学题已日益引起数学教育界的关注 ,并且逐渐形成了数学教学改革的热点 .所谓半开放型题就是条件或结论中有一个不定 ,需自己加以判断 ,解答 ,推证的一种题型 .结论不确定型的问题是最常见的一种 ,这类题型往往是问结论存在则求之 ,不存在则说明理由 .学生对 In recent years, open mathematics problems have increasingly attracted the attention of the mathematics education community, and gradually formed the hot spots of mathematics teaching reform. The so-called semi-open questions are uncertain in terms or conclusions, and need to be judged, answered, and proven by themselves. One type of question. Conclusion Uncertain questions are the most common ones. Such question questions are often asked to ask for the existence of a conclusion. If not, the reason is explained.