Mathematics
Intermediate
50 mins
Teacher/Student led
+80 XP
What you need:
IWB/Projector/Large Screen
tally template

Posing a Question and Collecting Data with a Tally

Learn to pose a question with a small set of answers and collect class data using tally marks, grouping every fifth stroke into a gate-mark for easy counting.

Teacher Class Feed

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    1 - Getting Started ~4 mins

    Illustration for Getting StartedWhat could we ask the whole class today? Here are two questions: What is your favourite GAA county? and How did you travel to school this morning? One of these is much easier to count than the other. Which one has only a few tidy answers, and which one could have nearly thirty different answers?

    2 - Watch and Notice ~10 mins

    Illustration for Watch and NoticeWatch as we set up a tally chart for the question What is your favourite fruit? with three answers: apple, banana and orange.

    Key point

    Notice how each answer gets one stroke. When we reach four strokes for apple and a fifth person chooses it, the fifth stroke goes across the first four to make a gate of five. The banana row has a full gate of five and two more, so that is seven. Counting in fives makes the rows quick to read.

    3 - Try It Together ~14 mins

    Today we explore one real question together: What is your favourite school subject? with the answers Maths, English, PE and Art. We go round the room and each pupil says their one pick out loud. As each pupil names their subject, we add one mark to the matching row on the board, making a gate-mark every fifth stroke. Let's check our rows count up in fives.

    Favourite school subject

    4 - Rule Your Tally Chart in Your Copy ~4 mins

    COPYBOOK MOMENT

    In your maths copy, write the class question at the top and rule a tally chart with one row per answer, ready to fill as the count is read out. Leave plenty of space along each row for your marks, and remember to cross every fifth stroke to make a gate.

    5 - Class Challenge ~12 mins

    Today we run quick whole-class tallies. Each question is a how many of us...? question, and the count of yeses fills one row on our chart:

    • How many of us brought a lunchbox today?
    • How many of us have a sister?
    • How many of us like brown bread?
    • How many of us walked to school today?
    Key point

    For each question, every pupil who answers yes adds one to that question's row, so each question gives us one row. As the rows fill across the whole class, our gate-marks really earn their keep.

    How many of us...?

    6 - What Did We Notice? ~3 mins

    MATHS TALK

    Why is What is your favourite animal? harder to tally than Do you have a pet — yes or no? What makes a question easy or hard to count?

    7 - What's Next ~2 mins

    What we learned today

    • A good data question has a small, tidy set of answers.
    • We tally one mark per answer and cross every fifth stroke to make a gate of five.
    • Counting in fives makes our rows quick and fair to read.

    Coming up

    Next we turn our tally marks into numbers in a frequency table, so we can see at a glance which answer won.

    Pupil practice
    Module 9 · Data and Chance Mixed
    Lesson 93 · Posing a Question and Collecting Data with a Tally
    Download Activity Book page (PDF)
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