AC9M4ST03: Conduct statistical investigations, collecting data through survey responses and other methods; record and display data using digital tools; interpret the data and communicate the results

A statistical investigation is a connected process. The question determines the data needed, the method affects data quality and conclusions must be supported by the collected evidence and limited to the population studied.

Learning routine: Pose question → Plan population/method → Collect ethically → Clean and organise → Display → Interpret → Communicate → Reflect

Success looks like

• Pose statistical questions
• Plan ethical collection
• Use digital recording
• Interpret evidence
• Communicate and reflect

statistical investigation

question, collection, representation, interpretation and conclusion

question of interest

the focused question guiding data collection

conclusion

a statement supported by collected data

Learning intention: Carry out a question-to-report investigation using genuine records and digital displays.

Year 4 boundary: Use counts, categories, clear scales, informal shape and variation. Formal averages, median calculations and causal claims are not required.

Support, core and extend

Support: Organise a small dataset together and check each entry once. Core: Create and interpret the required digital display. Extend: Compare representations and explain a limitation using the same Year 4 ideas.

Important questions and answers

Does the largest category always mean more than half? No: a largest count of 8 in 20 is less than half. Does a graph establish why something happened? No: it shows recorded patterns unless additional evidence supports a cause.

Assessment-style check and review hints

A one-choice survey records Adventure 7, Comedy 5, Animation 3; one of the five Comedy entries is an accidental duplicate. Correct the digital table, state the total and report one finding with a limitation. Answer: 7, 4, 3 total 14 genuine responses; Adventure has 3 more than Comedy. Describe only these respondents and explain the corrected duplicate. Check the raw record before deleting an entry.

Exit ticket and mastery evidence

Show your investigation question, method, actual records and digital display. Communicate two numerical findings and a limitation to another person, then record their question and your answer. An adult checks all stages against the source records; a completion tick alone is insufficient.

The content description and elaborations below show the curriculum ideas taught in this unit. Items marked as teaching context support lesson planning.

• Content description: conduct statistical investigations, collecting data through survey responses and other methods; record and display data using digital tools; interpret the data and communicate the results
• E1: creating a survey to collect class responses to a preferred movie choice, and recording data responses using spreadsheets; graphing data using a column graph or other appropriate representations and interpreting the results of the survey reporting findings back to the class
• E2: conducting a statistical investigation and acquiring data from different online sources; for example, using online query interfaces to select and retrieve data from an online database such as weather records, Google Trends or the World Health Organization
• E3: investigating different contexts in which statistical investigations can take place and the types of questions to ask to collect data relevant to the context; for example, investigating supermarket customer complaints that breakfast cereals with the most sugar are positioned at children’s eye level, discussing what questions they would need to ask and answer

Core idea: A statistical investigation is a connected process. The question determines the data needed, the method affects data quality and conclusions must be supported by the collected evidence and limited to the population studied.

Remember

• Pose statistical questions
• Plan ethical collection
• Use digital recording
• Interpret evidence
• Communicate and reflect

Important questions

• Improve a leading question. Explain using the model or evidence above.
• Why define the sample? Explain using the model or evidence above.
• Name two data-cleaning checks. Explain using the model or evidence above.
• Write an evidence conclusion. Explain using the model or evidence above.
• State a limitation. Explain using the model or evidence above.

Read the topic guide and use the teacher slide for instruction. Students can then use the worksheet for written work, open Practice for supported feedback, or take the Test when they are ready.

• Leading survey question — Wording should not push respondents toward an answer.
• Duplicate or inconsistent entries — Clean data before calculating frequencies.
• Conclusion exceeds sample — State who was surveyed and limit the claim.
• Display chosen after writing conclusion — Let the question and data determine the display.

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.

Curriculum equivalents for Conduct statistical investigations, collecting data through survey responses and other...

Mapped skill: conduct statistical investigations, collecting data through survey responses and other methods; record and display data using digital tools; interpret the data and communicate the results

These references identify matching or closely related learning. Curriculum sequence, terminology and depth vary, so teachers should use the mapped skill and lesson difficulty to confirm suitability.

Australian Curriculum v9.0 is the canonical source for this SkillrHub lesson. Victoria and NSW entries name the closest published state codes or outcomes; international entries are planning references rather than claims of identical curricula.

• Australian Curriculum Version 9.0
• Victorian Curriculum F-10
• NSW Curriculum
• Common Core State Standards
• Next Generation Science Standards
• England National Curriculum
• New Zealand Curriculum
• NCERT textbooks

• AC9M4N01: Recognise and extend the application of place value to tenths and hundredths and use the conventions of decimal notation to name and represent decimals
• AC9M4N02: Explain and use the properties of odd and even numbers
• AC9M4N03: Find equivalent representations of fractions using related denominators and make connections between fractions and decimal notation
• AC9M4N04: Count by fractions including mixed numerals; locate and represent these fractions as numbers on number lines
• AC9M4N05: Solve problems involving multiplying or dividing natural numbers by multiples and powers of 10 without a calculator, using the multiplicative relationship between the place value of digits
• AC9M4N06: Develop efficient strategies and use appropriate digital tools for solving problems involving addition and subtraction, and multiplication and division where there is no remainder
• AC9M4N07: Choose and use estimation and rounding to check and explain the reasonableness of calculations including the results of financial transactions
• AC9M4N08: Use mathematical modelling to solve practical problems involving additive and multiplicative situations including financial contexts; formulate the problems using number sentences and choose efficient calculation strategies, using digital tools where appropriate; interpret and communicate solutions in terms of the situation