Any teacher with a Mathspace or Waypoints account can now invite other teachers to join the school's subscription.
Inviting teachers in Mathspace:
To do this, log in to your Mathspace account, then:
Click on your avatar and select 'Invite teachers.'

Fill in all the details of the teacher you wish to invite.
Invitees will then be emailed a temporary login and prompted to create a password.
For schools with the 'Diagnostics' only package:
Enter the email address of the teacher you wish to invite.
They will also receive an email with their login details.