The term ‘year-round education’ is used to refer to school calendars that feature changes which make terms and holidays more even in length throughout the year.
Defnyddir y term 'addysg gydol y flwyddyn' i gyfeirio at galendrau ysgolion sydd wedi’u newid i greu tymhorau a gwyliau mwy cyson drwy gydol y flwyddyn.