Donors Choose is a nonprofit crowdsource funding site that helps teachers raise money for classroom projects.
Gaga also encouraged those dealing with mental health issues to seek help.
"If you’re struggling, please be brave and tell a trusted someone," she wrote. “Don't be scared to ask for help, I beg you. If you see a loved one struggling, please be brave and reach out, remind them it's OK to not be OK, and listen to them."