AC9M8ST04
Official content description
plan and conduct statistical investigations involving samples of a population; use ethical and fair methods to make inferences about the population and report findings, acknowledging uncertainty
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What Year 8 Maths students should achieve
Coverage is judged against the achievement standard — not by ticking every content description. These are the official Year 8 Maths standard sentences this code builds towards:
- By the end of Year 8, students recognise irrational numbers and terminating or recurring decimals.
- Students use mathematical modelling to solve problems using linear relations, interpreting and reviewing the model in context.
- They conduct statistical investigations and explain the implications of obtaining data through sampling.
- Students use 3 dimensions to locate and describe position.
- They use Pythagoras’ theorem to solve measurement problems involving unknown lengths of right-angle triangles.
- They apply the exponent laws to calculations with numbers involving positive integer exponents.
The Statistics progression either side of AC9M8ST04
A class can only meet this descriptor if they were taught the one before it. If yours hasn't, that's where the lesson starts — not here.
Taught before · Year 7
- AC9M7ST01acquire data sets for discrete and continuous numerical variables and calculate the range, median, mean and mode; make and justify decisions about which measures of central tendency provide useful insights into the nature of the distribution of data
- AC9M7ST02create different types of numerical data displays including stem-and-leaf plots using software where appropriate; describe and compare the distribution of data, commenting on the shape, centre and spread including outliers and determining the range, median, mean and mode
- AC9M7ST03plan and conduct statistical investigations involving data for discrete and continuous numerical variables; analyse and interpret distributions of data and report findings in terms of shape and summary statistics
Builds towards · Year 9
- AC9M9ST01analyse reports of surveys in digital media and elsewhere for information on how data was obtained to estimate population means and medians
- AC9M9ST02analyse how different sampling methods can affect the results of surveys and how choice of representation can be used to support a particular point of view
- AC9M9ST03represent the distribution of multiple data sets for numerical variables using comparative representations; compare data distributions with consideration of centre, spread and shape, and the effect of outliers on these measures
Other Year 8 Statistics codes
- AC9M8ST01investigate techniques for data collection including census, sampling, experiment and observation, and explain the practicalities and implications of obtaining data through these techniques
- AC9M8ST02analyse and report on the distribution of data from primary and secondary sources using random and non-random sampling techniques to select and study samples
- AC9M8ST03compare variations in distributions and proportions obtained from random samples of the same size drawn from a population and recognise the effect of sample size on this variation
Content description and achievement standard © Australian Curriculum, Assessment and Reporting Authority (ACARA), Australian Curriculum Version 9, used under CC BY 4.0. TeachKoala is not affiliated with or endorsed by ACARA.