1, mathematics is the most basic knowledge, no matter which subject, there is mathematics; Secondly, in all walks of life, sometimes you can't think that mathematics doesn't exist just because you don't see the data, because you will subconsciously use mathematical models or ideas, so mathematics has become a basic tool.

2. Mathematics class should adhere to the "five haves", that is, listening, watching, speaking, thinking and reaching. Ear listening: in the process of listening to the class, listen to the key points and difficulties of the knowledge told by the teacher and listen to the contents of the students' answers to questions; Eye-catching: connect the knowledge in the book with what the teacher said in class; Mouth-to-mouth: I didn't master it when I was previewing. I asked freshman questions in class. Heart orientation: think carefully in class, pay attention to understanding knowledge in class, and be proactive; Extension: While listening, watching and thinking, take some notes appropriately.