Textbooks for Namibia

My school recently got a new math curriculum and will no longer be using the old math textbooks. My daughter is a teacher with the Peace Corps  in Namibia, Africa. When she asked the students what I could send to them, they said, "Madam, if we could just have some textbooks!" My school would like to donate our old math textbooks to these students. Only 4-5 books will fit in one flat rate USPS box at a cost of $84.95 for each box. I will need 15-16 flat rate boxes for a total of $1274.25. Please consider donating so that we can ship our unused textbooks to the students of Namibia.