Blackboard design is an important part of our teaching because a good blackboard design can show the key points of lesson clearly. Also, it is very helpful for students to understand the content of this lesson. As for me, this lesson is a grammar class. So I think the content of blackboard design should contain the following aspects, including title of this lesson, key words and sentence patterns, key grammar points or rules, and exercises. By writing these on the blackboard, I believe students can grasp the main content of this lesson.