Unit 1 My classroomUnit 1 My classroom第二课时第二课时It is big. It is black or green. It is in front of our classroom. Teacher can write something on it.What is it?There are bright. Theyre long and thin. Theyre above the classroom. Therere twelve of them in our classroom. What are they?We have two in our classroom. Theyre in the wall. We can open and close them. We can come in and go out by passing it. Whats in the classroom? How many?What can we do?BlackboardOne Clean the blackboard.1.让学生课后试着设计 一间自己喜欢 的教室，要有漂亮的颜色。 2.让学生尝试 用英语设计 一个值日生 工作表，明确每名同学的工作。