OK so first of all thanks for going into this trashy looking thing. So Teacher Appreciation week is for appreciating the teachers in your school so when ever you pass by a teacher say a compliment even if it's just saying Thank you for teaching us for this past year it will make the teacher's day. Another thing you can do is make a small gift for your teacher or a letter for them. BUT even if it's not teacher appreciation week you can still always say thank you or give them gifts because it's never too late to say so because teachers should be appreciated.