Datblygwyd Her Ysgolion Cymru fel ymyriad cyfnod penodol i helpu’r ysgolion oedd yn wynebu’r heriau mwyaf i wella yn gyflymach. Dyrannwyd cyllid ar gyfer trydedd flwyddyn y rhaglen hyd at 31 Mawrth 2017. Dyluniwyd trydedd flwyddyn y rhaglen gyda hyn mewn cof, gyda’r cynllunio ac yna’r gweithredu yn digwydd ar sawl lefel, a hynny er mwyn ceisio sicrhau trosglwyddiad llyfn gan barhau i wella.
Schools Challenge Cymru was developed as a time-limited intervention to accelerate improvement in our most challenged schools with funding to support a third year of the programme identified up to 31 March 2017. The design of the programme for the third year was developed in this context, with planning and subsequent implementation taking place at several levels to facilitate a smooth transition and support sustained improvement.