Measuring Length (pupil)

Written exercise: List some of the ways that length can be measured.

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Written exercise: What units are used to measure length?

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Discussion: Class discussion on methods and units from written material.

Investigation 1

Measure the length of a line drawn with a straight edge.

Which method is most accurate?_____________________________________________________

Investigation 2

Measure the length of a curvy or squiggly line.

Which method is most accurate?_____________________________________________________

Class discussion

Is the class agreed on the most accurate method?_________________________________________

Which is the most accurate method of measuring length?_________________________________________            

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Investigation 3

Measure the circumference and the diameter of a circle using the most accurate method.

Circumference =                             cms

Diameter          =                            cms

Divide the circumference by the diameter.

Answer =____________________________________________________________________________            

All students write their answer on the blackboard/whiteboard.