There are many ways to implicitly promote a particular political ideology in educational courses: 1. **Selective teaching materials**: By selecting specific teaching materials or reference materials, a certain political viewpoint can be highlighted or other viewpoints can be downplayed or ignored. 2. **Biased course content**: In course design, certain historical events, figures or theories are consciously emphasized to support a certain ideology. 3. **Teacher's remarks and attitude**: Teachers' remarks in class, discussion guidance and responses to students' questions can subtly influence students' political views. 4. **Extracurricular activities and learning projects**: Organizing certain extracurricular activities or projects to promote a certain political idea, such as mock elections, debates, etc. 5. **Homework and assessment criteria**: Through the design of homework questions and grading criteria, students are prompted to think about and accept specific viewpoints. 6. **Hidden curriculum**: Specific ideologies are spread through informal channels such as campus culture, school activities and slogans. 7. **Filtering and interpretation of certain information**: Selectively introducing or downplaying certain information, or providing a specific interpretation framework to make students form a biased understanding. The implicit promotion of a political ideology can be either explicit or implicit, and its effectiveness depends on the level of detail in its implementation and the critical thinking ability of students.