Simplify the following text for a Grade 8 native English-speaking person.
Original: While still in Great Britain , he met AbbÃ Sicard , head of the Institution Nationale des Sourds-Muets Ã Paris , and two of its deaf faculty members , Laurent Clerc and Jean Massieu .
Simplified: While in Great Britain , he met AbbÃ Sicard , head of a school for deaf people in Paris , and two of its deaf teachers , Laurent Clerc and Jean Massieu .