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YEAR 2 · DATA AND GRAPHS · 10 MIN

Organising data in lists and tables

Turn a list of responses into a table showing how many belong to each group.

In this lesson

Before you start
  • Count small collections
  • Sort into groups
01 / LEARN

Understand the idea.

A list keeps the original answers

A response list keeps each answer in the order it was recorded. In apple, pear, apple, banana, pear, apple, a repeated word means another response. Three apple entries mean three apple choices, not just one fruit name.

Choose one fruit and scan the whole list for it. Mark each matching entry as you count, then repeat for the other fruits. This gives apple 3, pear 2 and banana 1, with each response counted once.

A table organises the count

A frequency table gathers the repeated answers into groups. Put each fruit name in its own row and write its count beside it. The headings tell readers that the numbers are responses, rather than pieces of fruit.

Add the counts: 3+2+1=6. There are six entries in the list, so the total agrees. Still check each fruit's count: a matching total alone cannot show that every response is in the right group.

Fruit frequency table
FruitResponses
Apple3
Pear2
Banana1
02 / WORKED EXAMPLES

See the method in action.

EXAMPLE 01

Organise a colour list

Make a table for: blue, red, blue, green, red, blue.

Colour choices
ColourResponses
Blue3
Red2
Green1

Worked solution

  1. 1

    Give each different colour one row.

    Blue, red and green are the three choices; repeated words belong in the same colour's row.

  2. 2

    Count the entries for each colour.

    Blue: 3Red: 2Green: 1

    Blue appears in positions one, three and six; red in positions two and five; green in position four.

  3. 3

    Check that all six responses are included.

    3+2+1=6

    The table's counts total six, matching the six entries in the original list.

Answer

Blue: 3; red: 2; green: 1.

EXAMPLE 02

Find a recording error

A child counts the fruit choices as Apple 3, Pear 2, Banana 2. Does that match the original table?

Six children choose one fruit each.
ChildChoice
AriApple
BoPear
CleoApple
DaraBanana
EliPear
FinnApple

Worked solution

  1. 1

    Add the child's recorded counts.

    3+2+2=7

    These counts would mean seven responses, but the original table lists only six children.

  2. 2

    Check who chose each fruit in the original table.

    Apple: 3Pear: 2Banana: 1

    Ari, Cleo and Finn chose apple; Bo and Eli chose pear; only Dara chose banana.

  3. 3

    Replace the banana count and check again.

    3+2+1=6

    Banana must be one. The corrected counts now agree with every child's choice and the six-child total.

Answer

No. Banana should be 1, making 6 responses in all.

03 / YOUR TURN

Try it yourself.

Check your understanding

A list says cat, dog, cat, fish, dog, cat. How many cat responses are there?

Show answer & reasoning

3.

Scan the whole list and mark each cat entry. Cat is first, third and sixth, so there are three cat responses. The dog and fish entries belong to other groups.

Keep practising

6 worksheet questions

Read the questions online
  1. Count the apple choices in the fruit table.
    Six children choose one fruit each.
    ChildChoice
    AriApple
    BoPear
    CleoApple
    DaraBanana
    EliPear
    FinnApple
  2. Make a frequency table for: bus, walk, walk, car, walk, bus.
  3. How many vehicles are recorded altogether?
    Vehicles observed in five minutes.
    VehicleNumber
    Car6
    Bus2
    Bicycle3
  4. Write the book types from the fewest choices to the most.
    Books chosen by a group.
    TypeNumber
    Animals4
    Space2
    Stories5
  5. Seven children each give one answer to a survey. A table shows 2,3 and 3 responses. Explain why it needs checking.
  6. Use the weather record to make a frequency table for Sunny, Cloudy and Rainy.
    Weather observed over five school days.
    DayWeather
    MondaySunny
    TuesdayCloudy
    WednesdaySunny
    ThursdayRainy
    FridaySunny
Read the worked solutions
  1. Count the apple choices in the fruit table.
    Six children choose one fruit each.
    ChildChoice
    AriApple
    BoPear
    CleoApple
    DaraBanana
    EliPear
    FinnApple

    Ari, Cleo and Finn chose apple.

    3.
  2. Make a frequency table for: bus, walk, walk, car, walk, bus.

    Count each choice once.

    Check 2+3+1=6.

    Bus: 2; walk: 3; car: 1.
  3. How many vehicles are recorded altogether?
    Vehicles observed in five minutes.
    VehicleNumber
    Car6
    Bus2
    Bicycle3

    6+2+3=11.

    11 vehicles.
  4. Write the book types from the fewest choices to the most.
    Books chosen by a group.
    TypeNumber
    Animals4
    Space2
    Stories5

    Their counts are 2,4 and 5.

    Space, Animals, Stories.
  5. Seven children each give one answer to a survey. A table shows 2,3 and 3 responses. Explain why it needs checking.

    2+3+3=8.

    Check for a repeated response in the original records.

    The counts total 8, but only 7 children answered.
  6. Use the weather record to make a frequency table for Sunny, Cloudy and Rainy.
    Weather observed over five school days.
    DayWeather
    MondaySunny
    TuesdayCloudy
    WednesdaySunny
    ThursdayRainy
    FridaySunny

    Monday, Wednesday and Friday are sunny.

    Tuesday is cloudy and Thursday is rainy.

    The total is 5 days.

    Sunny: 3; Cloudy: 1; Rainy: 1.
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Curriculum reference & lesson scope

Australian Curriculum v9; SA Curriculum Mathematics 2026

Surveys/observations; lists/tables; creating displays; comparing representations and conclusions.

Official curriculum source ↗

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