Mathematics curriculum standard for ordinary senior high schools (revised in 2020 in version 20 17). According to relevant public information, the curriculum standard was issued by the Ministry of Education of China, aiming at standardizing the content and quality of mathematics teaching in ordinary senior high schools and improving students' mathematics literacy and application ability. Curriculum standards are divided into three stages: grade one, grade two and grade three. The specific contents include: number and formula, function, trigonometric function, derivative and differential, integral, vector, coordinate system and parameter equation, sequence and mathematical induction, probability and statistics, etc.