Hidden courses refer to non-exam and unconscious school learning experiences that are not explicitly stated in the school curriculum plan. According to the above definitions, Which of the following are not included in the hidden curriculum:. ["Colleges and universities organize students to participate in two-day military training to cultivate and exercise students' willpower.", 'When children learn mathematics, they develop an attitude that likes to learn mathematics.', 'A university has set up a campus culture festival to let students know the school motto and style of study.', 'Teachers and students participate in extracurricular activities to establish an equal and harmonious teacher-student relationship.']