Accuracy of Measurements

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This video resource from Teachers TV features mathematics teacher Mark Dawes as he delivers the first of a series of lessons on the bounds of intervals to a Year Eight class at Comberton Village College. Students work in groups and use non-standard units to measure things in and around their classroom. Behaving responsibly is an important aspect of this lesson and Mark ensures that he has established a positive relationship with the class before they undertake this activity. After measuring the height of the door in pencil cases, the width of the whiteboard in shoes and the length of the corridor in 'Bens', the class comes to some conclusions about the bounds of accuracy that can realistically be claimed for different units of measurement.

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