You can always find the cost breakdown for classroom materials directly on the project page.
Classroom projects at DonorsChoose.org remain available for donor funding for up to 4 months, and because product sales are often temporary, we calculate the cost of each resource requested by a teacher at the respective vendor's list price.
Except for special requests, field trips, and classroom visitors, teachers can request materials only from our vendor directory. These partners are integrated into our e-procurement system, so we can purchase resources electronically and serve teachers more quickly.
We work to negotiate the best pricing possible with our vendors.
If actual expenditures for a student project turn out to be more than its posted price tag, our organization pays the difference. If actual expenditures turn out to be less than its posted price tag, we put those savings directly back into classroom projects.