How to make a class convention?

Class Convention (1) In order to better manage the class macroscopically, the class committee has formulated the following class convention. Please consciously cooperate and abide by it. Code of Conduct 1 requires school uniforms, and jewelry, including earrings, pendants, rings, amulets and bracelets, is not allowed. Consciously abide by classroom discipline, listen carefully, take necessary notes, don't make noise, and don't deliberately do things that affect the overall discipline. Cell phones or communication tools of the same nature are not allowed in class. In order to maintain the class image, we should pay attention to our own image and behavior in all public places of the school, such as talking loudly, chasing and playing in public places such as corridors and playgrounds. 4. Pay attention to personal hygiene and public health. Personal daily necessities, such as teapots, handkerchiefs (or paper towels) and rags, are required. Individuals are allowed to use garbage bags, but the excess garbage must be disposed of in time. 5 respect the teacher, don't contradict and insult the teacher.