Relevant people teach the position and direction of mathematics in the third grade of primary school. You can check out Baidu's "Best Teaching Software in China", including volumes I, II, III, IV, VI of Chinese, Mathematics and English in primary school, situational version, animated version, click-to-read version and situational animation display. Teaching software can interact with people and make primary school students love learning more. It is the best multimedia courseware for primary school teachers! We use this in our school and the effect is very good. You can try.