The hidden curriculum refers to the informal values ​​and perspective that students learn in school through social interaction with others. Simply put, we are believed to have become gendered by the concept of curriculum hidden in the implicit understanding of academic, cultural and social messages. The concept emphasizes that students absorb informal lessons, for example, how to interact with teachers, peers, and other adults, how they should understand and perceive different classes of people and racial groups; as well as what behaviors and ideas are considered unacceptable and acceptable. Therefore, the term “hidden curriculum” can be summarized as a side effect of education that reinforces the idea of ​​class and social status. In the classroom, experience and gender can cause lower self-efficacy for girls, particularly in those subjects (Science, Mathematics and Sports) that appear to be more suited to boys. To some extent, my high school science teacher exhibited some biases, such as tending to single out boys to answer their questions, and especially praising male students for their outstanding academic performance. The situation involves the unexpressed belief that boys do better than girls and the dominance of boys in some “male” subjects. Not surprisingly, as a student, I had a worse classroom experience that could have somehow lowered my performance on tests and schoolwork. Additionally, the school offers various choices of classes and extracurricular activities to accommodate the idea of ​​sexism. The fact is that most kids show relatively more interest in taking science, math, and sports classes; while girls tend to choose classes based on writing and reading, such as history, social studies and home economics. The choice of class and student preferences demonstrate the idea of ​​masculinity and feminism, traditional sex differences and pro-male prejudices (female characters were usually seen as a secondary and insignificant role). Overall, I studied in both Hong Kong and Canada for high school respectively. I would say