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Unit 1 · Scientific Study

Importance of Least Count Presentation

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Science and Technology, Class 9

The Importance of Least Count

Unit 1 · Scale, stopwatch and protractor

What we learn today

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Understand what least count means

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Work out the least count of the scale, the stopwatch and the protractor

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See why it matters in scientific study

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Presenter notes: Open by asking the class what they have measured since morning. Answers like time, length and weight will come. Then say that today we learn one secret every measuring instrument keeps.