Go to Google Classroom
Look for your homeroom and click on it
In the upper left hand corner of the page that opens, you will see a Google Meet Link (See illustration)
Click on this to enter Google Meet
Adjust your webcam and your microphone before you join the meeting
For Preschool to Grade 5: This will be your Google Meet for ALL subjects
For Grades 6 to 10: This will be your Homeroom. You will have a separate Meet Link for each of your subjects that will be announced in the Google Classroom
Read them here, click here