A learner survey was also disseminated via Children in Wales and 340 children and young people from years 7 to 11 responded.
Cafodd arolwg i ddysgwyr ei ddosbarthu drwy plant yng Nghymru hefyd a chafwyd ymatebion gan 340 o blant a phobl ifanc o flwyddyn 7 i flwyddyn 11.