Read the text below to answer questions 1, 2, 3, 4, 5
Galang attended an online class this afternoon. Prior to joining the class, he prepared a book and a pen to take notes. He also wore his school uniform. Upon joining the class, he promptly turned on his camera and turned off his microphone. During the class, one of Galang's friends, Andre, forgot to turn off his microphone, causing a lot of noise. The teacher instructed him to turn it off when not in use, and after doing so, the class continued. Despite this interruption, the students were able to enjoy the lesson. Galang had a question to ask at the end. The student clicked the 'raise hand' button and the teacher granted permission to speak. The class proceeded smoothly and Galang expressed satisfaction with the experience.
What preparations does Galang need to make before joining an online class?