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...is used to measure haemoglobin levels. Plus, what is the public's perception of maths? Reflecting on maths Members of the public share their memories of maths in school and a hospital DJ talks us through a typical shift. Applying mathematics Members of the public explain how they use maths in their day-to-day lives and we also look at the definition of mathematician....

...perception problem, but it wouldn’t be interesting enough to make a chart of, either. There is a way to make the perception of Green’s market share match up with the data: put it at the top or bottom of the chart. [Stacked Chart article embed images ] Rearranging works pretty well in this case, because we have only three companies, and Green’s slope is gentle enough...

...perceptions of American high-school students to produce a image of a scientist. Their findings, published in the journal Science, described a stereotype that still features in some forms of popular culture. The Open University's Dr Richard Holliman reflects on the findings of a research project called 'Invisible Witnesses' to explore these questions. In so doing he...