2. The teacher's landing on the iPad Teams account and join the conference classroom, open the camera and click the button to flip the camera to align the whiteboard;
2. Log in to the teacher's Teams account on the iPad and join the meeting class, turn on the camera and click the button to flip the camera to point it at the whiteboard;
2. Log in the teacher's team account on the iPad and join the meeting class, turn on the camera, and click the button to turn the camera to aim at the whiteboard;