Fit. According to official website, "Onion Mathematics" is an educational platform dedicated to learning mathematics. Through the professional learning mode scheme, students can master mathematics knowledge, which is suitable for junior high school students. The teaching content is synchronized with the junior high school textbooks, and the learning content is formulated according to the national syllabus. The main learning method is to watch teaching videos, and each video conveys knowledge to students through easy-to-understand language and funny ways, so onion mathematics is suitable for junior high school students.