For a podcast interview featuring Philomen Probert (the person who designed our maths lessons) explaining why they work so well, see https://ukedchat.com/2017/07/17/ukedpodcast-episode-12/.
After the 2016 Ancient Schoolroom BBC South TV asked us to resurrect the 2016 schoolroom so they could film it! The made-for-TV version was not quite the same as the original, but you can watch a clip from their coverage at https://www.facebook.com/BBCSouthToday/videos/982075311883059/.