Chance and data investigations
The Australian Mathematical Sciences Institute (AMSI) has research based guidance and lessons to develop students appreciation of the chance in data and the data in chance.
For years 1-4 Australia focuses on chance and data investigations and interpretations separately.
A lesson plan for exploring the language and tools of chance is available here.
Note: Australian schooling is K-12, so year 1 in Australia is age-equivalent to year 2 in New Zealand