Such provision has existed in Wales for a number of decades, and in a number of different ways (through designated centres, language units, and within schools).
Mae darpariaeth o’r fath wedi bodoli yng Nghymru ers nifer o ddegawdau, ac mewn nifer o ffyrdd gwahanol (drwy ganolfannau dynodedig, unedau iaith, ac o fewn ysgolion).