AC9S9I03
Planning and conducting
select and use equipment to generate and record data with precision to obtain useful sample sizes and replicable data, using digital tools as appropriate
Elaborations
- AC9S9I03_E1using an electronic balance that measures within the parameters of the required mass, and recording data to the correct number of significant figures using correct units
- AC9S9I03_E2using data loggers and choosing correct scale and appropriate output representation
- AC9S9I03_E3examining the degree of accuracy that different instruments provide, such as a measuring cylinder compared with a pipette, and recording data values to the correct degree of precision using appropriate scientific notation
- AC9S9I03_E4considering the replicability of data collected using different instruments, including the inaccuracies that may be introduced when taking measurements
- AC9S9I03_E5discussing the amount of data needed to produce a useful sample size and why sample size is important
- AC9S9I03_E6considering an appropriate sample size for the investigation, and how the use of digital tools might enable more-efficient data collection for larger sample sizes
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