The concept that girls are not sensitive to mathematics is unclear. Literally, girls are not sensitive to some problems in mathematics and can't work out the answers quickly. In this case, the problem is not too big. You can change this state by doing more exercises and mastering the use of formulas. But on the other hand, it's probably not literal. Maybe it means that girls are not interested in math? If so, the questioner used the wrong word. Girls are not interested in mathematics and can't learn this course well, so it's very difficult. We must inspire them from the psychological point of view, start with rational reasoning, and let them set up the compulsory course of mathematics. If they don't study well, it will be difficult to graduate, so as to slowly change this situation.