Bring your teacher flowers, or suggest that everyone in the class bring one flower to be assembled into a festive arrangement.
Bring your teacher fruit. Apples are a traditional gift for teachers, but you can also bring him any other fruit such as bananas, pears or oranges.
Write your teacher a letter to tell her how appreciative you are of all her hard work.
Bring your teacher something sweet such as a cupcake, candy or cookies.
Bring your teacher extra supplies. These can be pencils, erasers, chalk, hand sanitizer, tissues, antibacterial wipes or anything that he may need in the classroom.
Plan a breakfast for all the teachers in your school to show your appreciation.