When teaching writing, it’s vital that you not bite off more than your students can chew.
In the first days of a school year, students are unsure of themselves and their surroundings.
Give them the security of writing tasks that connect to something concrete and familiar.
Assignments that ask students what they expect to learn and do in a class are useful: They give you the opportunity to correct misconceptions.
Responses to writing prompts that ask students to predict how this year’s English course will be like and/or unlike last year’s can also be enlightening.
Use student responses to help you set your course for the rest of the year.
I highly recommend using initial writing to establish students’ entering command of writing mechanics, so you can develop Individual Mastery Plans for your students. IMPs are the best way I’ve found to eliminate serious mechanical errors in student work.