现今教学的要求,教师不仅是引导学生掌握知识,而且要发展学生智力,培养学生能力.我们要培养的是具有创造力的人材,而创造力是由观察力、想象力、创造性思维等构成的.观察是基础,由观察而联想,联想可发展智力;猜想是联想的继续,是一种发散性思维, In today’s teaching requirements, teachers are not only guiding students to acquire knowledge, but also developing students’ intelligence and cultivating their abilities. We must cultivate creative human resources. Creativity is composed of observation, imagination, and creative thinking. Observing is the basis for association by observation. Lenovo can develop intelligence. Conjecture is the continuation of association. It is a divergent thinking.