直观教学是教学中利用学生的各种感官和已有经验，通过各种形式的感知，丰富学生的直接经验和感性认识，使学生获得生动的表象，从而比较全面、深刻地掌握知识，并提高认识能力的一种方法．学生思维发展的特点是从形象思维过渡到抽象思维，直观教学可使知识具体化、形象化... Intuitive teaching is the use of students’ various senses and existing experiences in teaching. Through various forms of perception, students’ direct experience and perceptual knowledge are enriched, so that students can obtain vivid appearances, thereby acquiring a more comprehensive and profound knowledge and improving. A method of understanding competence. The characteristic of students’ thinking development is the transition from image thinking to abstract thinking. Intuition teaching can make knowledge concrete and visualized...