Treloar School and College enable education for young people with physical disabilities.
They provide care, therapy, medical support and independence training to the youngsters in their care.
Her Royal Highness met some of the School's students on Wednesday, joining them in a game of Polybat - a customised game of table tennis.
The Countess also spoke with Speech and Language staff, learning more about the work that they do.
For more on the work of The Countess, click here.