***For schools ordering with a PO, please note these memberships are priced for teachers who are paying out of their own pocket. We are honoring these membership prices to schools using POs during the pandemic with the condition that three years must be prepaid. The administrative work required to renew POs annually (on both sides) makes this necessary for us. Of course if you can pay with a credit card, and it automatically renews, then you can pay one year at a time.***