What students learn in AC9M2ST01
This unit helps students build a clear, usable understanding of Acquire data for categorical variables through surveys, observation, experiment and.... The goal is not to memorise one answer pattern. Students should be able to explain the idea, recognise it in a new example and apply it in a short practice or worksheet task.
- Start with the main idea: acquire data for categorical variables through surveys, observation, experiment and using digital tools; sort data into relevant categories and display data using lists and tables.
- Use concrete examples, pictures, oral explanation and short written responses before moving to independent practice.
- posing a question of interest about favourite things; for example, asking classmates what are their favourite types of fruit, football teams, days of the week, and recording responses using a table; using counting strategies to determine the number of different responses and the most popular and least popular responses investigating questions, such as “How much rubbish is really rubbish?” by gathering data about objects in categories; for example, throw away, recycle and reuse; deciding whether the data answers the question
- Finish with mixed questions so students must choose the correct strategy rather than copy the last example.
Curriculum coverage and elaborations
The content description and elaborations below show the curriculum ideas taught in this unit. Items marked as teaching context support lesson planning but may not appear in the initial eight-question activity.
- Content description: acquire data for categorical variables through surveys, observation, experiment and using digital tools; sort data into relevant categories and display data using lists and tables
- E1: posing a question of interest about favourite things; for example, asking classmates what are their favourite types of fruit, football teams, days of the week, and recording responses using a table; using counting strategies to determine the number of different responses and the most popular and least popular responses
- E2: investigating questions, such as “How much rubbish is really rubbish?” by gathering data about objects in categories; for example, throw away, recycle and reuse; deciding whether the data answers the question
- E3: using familiar software or generative artificial intelligence tools, to construct a survey to collect class data, sorting and interpreting responses, and considering the questions asked and whether they need to be modified to reuse the survey
- E4: observing events and using the observations to design a table or list to record data; for example, observing students arriving at school prior to deciding the appropriate data categories for investigating the different ways students get to school
- E5: exploring the ways First Nations Australians observe, collect, sort and record data (teaching context)
How to use this unit
Read the topic guide, use the teacher slide for instruction, then complete the Worksheet, Practice and Test. These three activities use the same eight-question unit bank.
Teacher resource
AC9M2ST01 teacher slide
Use this one-page PDF to introduce the key idea, vocabulary and teaching sequence before students begin the activities.
Open teacher slide (PDF)Common mistakes to watch for
- Rushing to a rule before checking the concrete model, drawing or number sentence.
- Using the correct answer once but not being able to explain why it works.
- Mixing up similar vocabulary such as more/less, before/after, longer/shorter or equal groups/sharing.
International curriculum mapping
This table gives closest-topic mapping for search and planning. The Australian Curriculum code is exact; overseas entries are broad equivalents because each jurisdiction structures outcomes differently.
| Region | Curriculum | Closest mapping |
|---|---|---|
| Australia | Australian Curriculum v9.0 | AC9M2ST01 — acquire data for categorical variables through surveys, observation, experiment and using digital tools; sort data into relevant categories and display data using lists and tables |
| Victoria | Victorian Curriculum F-10 | Year 2 Maths: closest match in Statistics. Use this page as a VIC-aligned practice and worksheet reference. |
| NSW | NSW Curriculum | Stage 1 Maths: closest content focus for Acquire data for categorical variables through surveys, observation, experiment and... and related outcomes. |
| United States | Common Core / NGSS | Grade 2 Common Core Mathematics/ELA closest topic match for Acquire data for categorical variables through surveys, observation, experiment and.... |
| England / UK | National Curriculum | Key Stage 1 / Year 2: closest programme-of-study match for Acquire data for categorical variables through surveys, observation, experiment and.... |
| Canada | Provincial and territory curricula | Grade 2 closest topic match. Canada varies by province, so use this as a broad Ontario/BC-style learning outcome reference. |
| New Zealand | New Zealand Curriculum | Level 1 Maths: closest achievement-objective topic for Acquire data for categorical variables through surveys, observation, experiment and.... |
| India | NCERT / CBSE | Class 2 closest NCERT/CBSE topic match for Acquire data for categorical variables through surveys, observation, experiment and.... |