How much screentime are children getting at school?

Digital technology recommendations on the Ministry of Education website say children two to six years old should have minimal screen time, with a sessions a maximum of 15 minutes at a time. It's recommended students six to 12 years old should spend no more than a third of the school day on screen, that's about two hours. But how closely are the guidelines being followed, from one school to the next? Julie Cullen, a paediatric physiotherapist, spoke to Lisa Owen.