The slave and former slave populations are deprived of education because slave children may only work. They are thus condemned to forced labour from childhood and required to work. They may not go to school. They do not even have civil documentation so that they can register for school.
Furthermore, there are slave villages where slaves no longer live with their masters but are placed in landed slavery, agricultural slavery, which is different from domestic slavery. They do not work directly with their masters, but their Arab-Berber masters have placed them on arable land. They therefore cultivate the land and their masters come and take the harvest. This is what is called agricultural slavery or landed slavery. These villages generally do not have schools, and, if they do, they are abandoned schools where a school teacher comes once or twice a week. This is a facade. The Mauritanian government totally neglects public schools. There are no longer any schools where slaves and blacks live.
Mauritanian Arab-Berber groups have established schools: a large French school, a Lebanese school, a Turkish school, and an American school, all of which have several branch schools, but only the Arab-Berber elite may send their children to those schools. They are very expensive and inaccessible.
The Mauritanian government has also established schools of excellence where children's studies are funded by the government, high-level studies, but only Arab-Berbers have access to those schools, not us.