What's the ruling on the entrace of the blind [man] upon the woman for the purpose of teaching in the schools?

Question: What's the ruling on the entrace of the blind [man] upon the woman for the purpose of teaching in the schools?

Answer: The entrance of the blind man upon the woman for the purpose of teaching, (there is) no problem with it.
Because it is permissible for the woman to look at the blind (men) as long as there are no fitna, and the evidence on this is that the Prophet sallallahu alayhe wa sallam said to Fatimah bint Qayees, "Spend this period as he is a blind man, and you can put off your garments with him" [Reported by Muslim] and he sallallahu alayhe wa sallam permitted Aeysha to look at the Habesha while they were playing in the masjid.

But if from this, fitnah [trails] takes place (such) as enjoying of voice of the woman or comes close to her side for instance, and grasping her hand, and what is similar to that, then indeed it is not permissible. It is not becasue looking at the man is haram but becuase mixing with him is haraam.

Fatwa by: Shaykh Uthaymeen.
In His Book: Collection of Questions Related to the Muslimah Family
Translation: N.A.S.
Corrected & Edited: Umm Yahya

Arabic found here: http://arabicstudy.multiply.com/journal/item/21/21