The cost depends on the size of your school and the number of subjects you buy. The more subjects you choose to buy, the less each subject costs. School membership covers an unlimited number of users in your school.

Schools can upgrade at any point in their subscription year and still benefit from the multi-subject discount. If you upgrade your subscription part way through the subscription year, we pro-rate the price and length of the subscription for the extra subject(s) so that access to all your subjects ends on the same date.

See school pricing here.