Subjects that are taught at the school include: English, Cymraeg (Welsh), Science, Maths, Art, Music, Physical Education (PE), Information Communications Technology (ICT), Religious Studies (RS), Geography, History, French, Drama, Business Studies, Design Technology (which includes: Wood work, Home Economics, Engineering, Textiles), Hospitality, Vocational Studies.

[2] In 2019, five pupils won international travel scholarships: two to build a school in Rajasthan, India, two to explore in the Yukon, Canada and one to visit the Massachusetts Institute of Technology in the USA.

[4] The motto on the school's crest is Deuparth Bonedd yw Dysg,[5] which is Welsh for "The Root of Nobility Lies in Education".

Some of the vocational courses are taught at Coleg y Cymoedd's Aberdare campus and at Merthyr Tydfil College.

Mountain Ash Comprehensive School, Rhondda Cynon Taff Council and the Consortium are currently in discussion to close the Sixth Form in Mountain Ash and migrate all students who start September 2025 to Aberdare Community School.