To effectively listen to English classes in junior high school, follow these steps:

1. Prepare: Before class, review any vocabulary or grammar topics you'll be covering. This will help you understand the lesson better.

3. Engage: Participate in class discussions and activities. Speaking English helps you practice and remember what you've learned.

4. Review: After class, review your notes and practice any new vocabulary or grammar rules. Use flashcards or study with a group to reinforce learning.

By following these tips, you can improve your listening skills and overall English proficiency in junior high school.