I'm a great believer in using different kinds of data to measure how well pupils are doing, not all of which are quantifiable in the usual sense.
Read MoreOur lives in data: privacy
How much data are you prepared to give away, and what are you prepared to allow organisations to do with it? The answers in my case surprised me.
Read MoreBig data infographic
Here is a big data infographic I produced in 2014.
Read More