Collecting categorical data: Year 1 Maths topic guide

What students learn in AC9M1ST01

This unit helps students build a clear, usable understanding of Collecting categorical data. 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 and record data for categorical variables in various ways including using digital tools, objects, images, drawings, lists, tally marks and symbols.
• Use concrete examples, pictures, oral explanation and short written responses before moving to independent practice.
• discussing methods of collecting data to answer a question, such as “What types of rubbish are found in the playground?”, sharing ideas and trying out some of the suggested methods; reviewing the data collected and explaining how they might change the way they collect data next time collecting and recording information on a topic of interest using lists; for example, “how many people follow a particular football team” or “what colour eyes each person has”; examining the data, to generate some questions that it could answer, then rearranging the data or collecting different data to answer 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 and record data for categorical variables in various ways including using digital tools, objects, images, drawings, lists, tally marks and symbols
• E1: discussing methods of collecting data to answer a question, such as “What types of rubbish are found in the playground?”, sharing ideas and trying out some of the suggested methods; reviewing the data collected and explaining how they might change the way they collect data next time
• E2: collecting and recording information on a topic of interest using lists; for example, “how many people follow a particular football team” or “what colour eyes each person has”; examining the data, to generate some questions that it could answer, then rearranging the data or collecting different data to answer the question
• E3: creating a tally to record data while observing events such as the year level of students using the bike shed; deciding on the possible categories before the observations are taken, then reviewing the data afterwards to notice whether the tally was effective
• E4: using star charts with stickers or emojis to represent class data; for example, using emojis on a personal feeling chart to represent how they are feeling each day or using emojis to represent activities on the class calendar
• E5: role-playing being a chatbot asking simple yes/no questions and collecting data, and representing the data using virtual manipulatives, stickers or emojis
• E6: exploring ways of representing, sharing and communicating data through stories and symbols used by First Nations Australians (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.

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.

Related Year 1 Maths topics

• AC9M1N01: Numbers to 120
• AC9M1N02: Partitioning tens and ones
• AC9M1N03: Skip counting and equal groups
• AC9M1N04: Addition and subtraction within 20
• AC9M1N05: Additive problem solving and money
• AC9M1N06: Equal sharing and grouping
• AC9M1A01: Skip-counting pattern sequences
• AC9M1A02: Repeating patterns

Official curriculum references

• 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