The exercises in your mail box are deleted after 30 days with a free account (1 year with premium accounts). If this is the case, you still have other additional 30 days to recover them if you go to “my subscription” and upgrade your subscription.
If you deleted the exercises yourself, it’s not possible to recover them anymore.

Add students to specific groups.

1. Select the My Students tab.
2. Select the All Students tab.
3. Select the student name(s) you’d like to put in a group.
4. F…

As a Teacher, you can create groups or classes, and assigned students to them to make it easy to assign homework 

1. Once logged in as a Teacher, from your Dashboard, click My Students
2. Click Add Group
3. In the field Title, give your group or class a name
4. If you want the group or class to be publishe…

Organize homework assignments and assign to students via workbooks.  

1. On the Dashboard select My Workbooks.
2. Next, click Add Workbook.
3. Read more

1. Selecting certain worksheets to be hidden in a workbook.
   1.  
      1. Along the top menu select My Workbooks, and choose the workbook you'd like to manage.
      2. On the worksheet you'd like to hide, in the top right there is a menu (3 lines).  With your mouse, hover over this menu and choose Hide to hide that page or worksheet in your workbook. …

Where teachers can find and manage their workbooks.

To edit a workbook:

1. Along the top menu, select Dashboard.
2. Select My Workbooks.
   Read more

1. Assigning a workbook to a group of students.
2.  
   1. 1. From the top menu or the Teacher Dashboard select My Workbooks.
      2. Select the desired workbook.
      3. On the next menu, select Ass…