Someone sent me a headache inducing chart recently (I've blurred the schools): A data table and a chart - double the fun. The table is OK (ish) and is readable – but the graph. Genuinely I can’t get my head round what is going on.
One of my previous head teachers taught me a phrase – “Perception is reality” – used for many aims; to spur us on during Inspection, to praise when initiatives went well and to feedback when things went wrong. This is equally true for data. Certain…
Sometimes you see a chart on a website and can't help thinking about the motivation and thought process behind it. Take this, taken from a live school local authority web site: The colours haven't been adjusted - shades of yellow / orange representing something over the years…