The Ministry is migrating nzmaths content to Tāhurangi.
Relevant and up-to-date teaching resources are being moved to Tāhūrangi (tahurangi.education.govt.nz).
When all identified resources have been successfully moved, this website will close. We expect this to be in June 2024.
e-ako maths, e-ako Pāngarau, and e-ako PLD 360 will continue to be available.
For more information visit https://tahurangi.education.govt.nz/updates-to-nzmaths
A method of sampling in which the population is split into non-overlapping groups (the strata), with the groups having different characteristics that are known for the whole population. A simple random sample is taken from each stratum.
Example
Consider obtaining a sample of students from a secondary school with students from Year 9 to Year 13. This year levels are suitable strata, and the simple random samples taken from each year level from the sample.
Curriculum achievement objectives references
Statistical investigation: Levels (7), (8)
