I want to send a message to all students in my Batch. How do I do that?

You can use the Chat feature on your batch. Navigate to Manage Batches. Choose the batch and click on Chat. Scroll to the bottom of the page. Type a message in the message box.  Here you can choose to send a reminder or announcement or a question that you might have for all your students. To send the message, click on the right pointing arrow at the right hand corner.