Google | Classroom
Creating a post in Google Classroom depends on whether you want to make an (for the Stream) or an assignment/material (for the Classwork page). Option 1: Create an Announcement (Stream Page) Best for: Updates, reminders, and quick announcements. Go to classroom.google.com and click your class. On the Stream page, click "Share with your class". Type your message.
Let me know which one, and I can give you more specific steps. Reuse a post - Computer - Classroom Help google classroom
Use the "Reuse post" option to save time on repeating assignments. Creating a post in Google Classroom depends on