The correct response is: No. Even information correctly used for school projects may not be posted on a website without permission.
While Donny used the multimedia for educational purposes in a school project and cited the source, posting it on the school website constitutes a new distribution of that material. Fair use is a complex doctrine, and using copyrighted materials without permission can still infringe on copyright laws, even when the use is for educational purposes. Obtaining permission from the copyright holder is usually necessary before posting any multimedia content online.