Mae’r dull hwn o gydweithredu a’i ffocws penodol yn seiliedig ar yr egwyddor o welliant sy’n cael ei ysgogi gan yr ysgol ei hun, lle caiff gwybodaeth ac arbenigedd sydd eisoes yn bod eu nodi a’u rhannu ar draws y system. Drwy roi pwyslais ar gydweithredu effeithiol, mae Her Ysgolion Cymru am feithrin ymdeimlad o gyfrifoldeb ymhlith pawb, fel y gall pob un ohonom helpu i sicrhau bod dysgwyr Cymru yn cyflawni eu potensial.
This collaborative and focused approach is based on the principle of ‘school-led improvement’, with knowledge and expertise being identified from within the system and shared across it.  By placing an emphasis on effective collaboration, Schools Challenge Cymru aims to foster a collective sense of responsibility, with everyone working together to ensure that Welsh learners are supported to reach their full potential.