Step 1: The class student administrator opens the blackboard with the key.
Step 2: Press the power button on the lower right panel of the all-in-one teaching machine, and the computer projection will start synchronously.
Step 3: Carry out normal teaching work.
Step 4: Turn off the computer after class: Press the power button on the lower right panel of the teaching machine, and the computer projection will be turned off synchronously. Or shut down the computer through the shutdown program of the computer system. When the computer is turned off, the projector will automatically turn off after sufficient cooling.
Step 5: the teacher closes the blackboard: after moving the handle to a certain position, pop up the lower part of the blackboard and press the lock up, and lock it with the key.