Single Product

DERS Subscription Annual Renewal

$120.00 / year

The DERS is a classroom observation tool that measures environmental and behavioral qualities proven to support those outcomes—for any developmental educational model, not just Montessori.

The annual subscription renewal gives users 365 days of access to the app and membership in the DERS network.

View Course Information for DERS Subscription Annual Renewal

**Please Read for Group Purchases**

To purchase for more than one participant use the drop down menu to choose the number of group members you would like to enroll.

Use your school/organization name as the group name.

Click here for instructions on how to assign users to a group after your purchase.

Paying by Check: To request to pay by check, use this form. You will not be registered until your check has been received. Once your check has been received, we will enter your registration for the event and confirm via email. For questions about payment, contact

If you need assistance with your purchase please reach out to

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