Mathematics / Year 9 / Measurement

Curriculum content descriptions

solve problems involving very small and very large measurements, time scales and intervals expressed in scientific notation (AC9M9M02)

Elaborations
  • representing very large and small real numbers in scientific notation, converting real numbers expressed in scientific notation into decimal form; for example, the approximate geological age of the earth is \(4.6\times 10^9\) years, the mass of a sugar molecule is \(5.68\times 10^{-21}\) grams
  • using knowledge of place value and applying exponent laws to operate with numbers expressed in scientific notation in applied contexts; for example, performing calculations involving extremely small numbers in scientific and other contexts
  • examining the degree of accuracy that different measurement instruments provide in a science laboratory, such as a measuring cylinder compared with a pipette, and recording data values to the correct degree of accuracy using appropriate scientific notation
General capabilities
  • Numeracy Numeracy
ScOT terms

Timelines,  Scientific notation,  Time units,  Scale (Proportions)

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This resource is an assessment task focussing on scientific notation. It consists of questions involving rational and irrational numbers, multiplying and simplifying numbers expressed as exponents, converting in and out of scientific notation, and performing operations on numbers in scientific notation. The resource could ...

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Very large and very small numbers

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TIMES Module 31: Number and Algebra: indices and logarithms - teacher guide

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Work sample Year 9 Mathematics: Similar triangles

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