구글출석부
https://chrome.google.com/webstore/detail/google-meet-attendance-v2/hhdmekoddjmghpckcgejaekaoelfbjhp
리모트 포 슬라이드
https://chrome.google.com/webstore/detail/remote-for-slides/pojijacppbhikhkmegdoechbfiiibppi
브레이크아웃룸즈
https://chrome.google.com/webstore/detail/google-meet-breakout-room/kogfdlbehkaeoafmgaecphlnhohpabig/related
좌우반전