Tech's battle for the classroom

Jane Wakefield checks out the latest educational tech at the Bett 2020 show in London and talks to Apple and Google about how they think technology can prepare students for the jobs of tomorrow. Plus she finds out what role robots can play in teaching. And is always-connected technology making you stressed and burnt-out? If so, we hear some tips that might help. With BBC tech reporter Chris Fox. (Image: Jane Wakefield with the Ohbot robot head, Credit: BBC).