AC9M9M02 Year 9 Mathematics

Content descriptor solve problems involving very small and very large measurements, time scales and intervals expressed in scientific notation

Elaborations

• • Elaboration 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
• • Elaboration 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
• • Elaboration 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