Please help me make the following sentences sound natural. Thanks a lot.
Teaching hours, grades, and classes:
- There are totally 14 regular classes in grade 7, i.e. one lesson a week in each regular class.
- There are totally 7 lessons in grade 7 & 9 in English Gifted Class.
- One hour of English teaching research meeting, about once every 3 weeks.
- In short, there are 21 lessons a week all together in your teaching.
- There are 45 minutes in each lesson.