Precise and Accurate Measurements


Measuring sizes, weights, volumes, etc. is a very important human activity. Although we dont explicitly realise, measuring any quantity comprises of a lot of concepts and ideas. The process of measurement and the measuring instruments involve ideas like precision, accuracy, least count and instrument range. In this unit, students will develop a deeper understanding of these measurement concepts by performing various measuring activities.

Desired prerequisite: Estimation

Materials Required

Geometrical instruments box (compass box), thermometers (laboratory and clinical), micrometer screw gauges, objects having shape of parallelepiped (preferably a match box), book or notebook, simple pendulum set up, stop watch, syringes, protractor, measuring cylinder, thick paper or cardboard, scissors (or cutter), any other convenient instrument

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