The difficulty of the new curriculum in junior high school mathematics era has been greatly improved. In my opinion, the first change of this mathematics teaching reform is to add the concept of "core literacy". The Standard (2022 Edition) emphasizes: "Observe the real world with mathematical eyes, think about the real world with mathematical thinking, and express the real world with mathematical language." The teaching orientation embodied in this is very clear, that is, to completely abandon the biased strange problems in the past and let mathematics really return to the source of reality, that is, "applying what you have learned." In addition, in solving problems, the difficulty of the new mathematics curriculum standard has also been greatly improved. Through comparison, it is found that the requirements of the 2022 version of the curriculum standard for students in grades 5 and 6 have exceeded those of the 20 1 1 version of the curriculum standard for students in grades 7 and 9, and higher requirements have been put forward for students in terms of "what problems can mathematics knowledge solve in real life" and "how mathematics can connect with other disciplines". Based on this, it can be inferred that the proportion of practical application topics and topics combined with other disciplines will increase in future math exams. Based on this, many educational experts point out that "those who get mathematics get the world" will no longer be empty talk! With the increase of difficulty, mathematics will become a touchstone that can completely widen the score gap between candidates-those children who lack basic common sense of life, only bury their heads in brushing questions and don't know how to look up at the road, will probably suffer a big loss if they don't change their learning strategies in time.