At the top of your Edmodo screen, you will see a text box that allows you to share content, instructions, or ideas with whoever you choose. After typing your message, you can choose your recepients - individuals, your entire class, multiple classes, smalls groups you create, or your teacher connections.
For notes, you can attach files and links from your computer or Edmodo library. Any files or links you post will automatically be added to your library, so make sure to give your links good descriptions!
If you want to send a shorter, more urgent notice, you can also send an alert. While you can't attach files to an alert, it does send your message in a larger, bolder font which is hard to miss.