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    In this activity, students investigate the use of body parts such as the arm and fingers as a basis for developing a length measuring system.

    By the end of this activity, students should be able to:

    • use arm and finger parts to develop a length measuring system
    • recognise the need to standardise a length measurement system
    • understand that every measurement consists of two parts – a number and a unit
    • recognise that there is a degree of uncertainty with every measurement taken.

    Download the Word file (see link below) for:

    • introduction/background notes
    • what you need
    • what to do
    • discussion questions.

    Related content

    Learn more about the history of measurement – and the need for standardised measurements – in this interactive timeline.

      Published 17 August 2011 Referencing Hub articles