... 2. 196 0s: A lot of university and college students wore jeans. 3. 197 0s: Jeans became cheaper so many, many people began wearing jeans. 4. 198 0s: Jeans became high fashion clothing. 5. 199 0s: ... structure of English book 9, some ways to learn English 9. review some tenses and structures they’ve learned. *Procedure Activity 1 Teacher introduce the English book 9. Teacher asks Ss to compare ... secondary school - 15 - Lesson plan 9 Date of planning: Period: Date of teaching: Week: How to learn English 9 *Aims: To help SS know how to learn English 9, review some tenses and structures...