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

Bar Charts: Drawing and Reading

Learn to convert tally charts into bar charts with labelled axes, then practise reading values accurately from finished charts, including those with tied categories.

Teacher Class Feed

Load previous activity

    1 - Getting Started ~5 mins

    Here is a tally chart you collected with the class earlier in this unit, and beside it a blank canvas with two empty axes. How would we turn this tally into a chart that tells the same story at a glance?

    2 - Watch and Notice ~9 mins

    Watch carefully as three finished bar charts appear on the screen. The same shape rules every time: categories along the bottom, frequency climbing the side, and one bar per category — taller for more, shorter for less.

    School commute

    Twelve walk, five cycle, eight come by bus, three by car. Notice that the 'Walk' bar is the tallest of the four because it has the biggest count.

    Favourite fruit

    Nine apples, seven bananas, four oranges, five pears. The chart sorts your counts into bars; the order of the bars matches the order on the x-axis.

    Pets at home

    Fourteen dog-owners, eight cat-owners — and now look carefully — three with fish, and three with no pet at all. The last two bars are the same height. We call those tied categories.

    3 - Try It Together ~13 mins

    Now the class works through one chart together at the board. The categories are already in place along the x-axis: Walk, Cycle, Bus, Car. Read the tally aloud, then drag each bar up to its frequency. Read every height back before checking.

    Build the commute chart together

    4 - Draw the Bar Chart in Your Copy ~2 mins

    COPYBOOK MOMENT

    In your maths copy, sketch the bar chart frame. Draw a horizontal axis along the bottom and a vertical axis up the left side. Label the horizontal axis with the four categories from the tally we just built: Walk, Cycle, Bus, Car. Label the vertical axis with the word frequency, and number it up the side. Then draw each bar to the height that matches the tally count for that category. A bar chart without labels tells nobody anything — take your time on the axes.

    5 - Class Challenge ~15 mins

    Today's bank works through five charts of growing trickiness. The early ones are clean four-bar builds; later ones have tied categories and one needs an inferred missing bar. For each, read the label aloud, drag each bar to match, then tap Check.

    Today's bar-chart challenges

    Pupil practice
    Module 7 · Data, Chance and the Co-ordinate Plane Data & Chance
    Lesson 89 · Bar Charts: Drawing and Reading
    Coding Ireland · Online learning platform

    Unlock the full learning experience

    You're previewing this lesson. Get full access to this lesson and hundreds more — each one ready to teach, with interactive activities, printable resources and pupil progress tracking built in.

    Hundreds of curriculum-aligned lessons
    Interactive activities in every lesson
    Printable resources & progress tracking
    Copyright Notice
    This lesson is copyright of Coding Ireland 2017 - 2025. Unauthorised use, copying or distribution is not allowed.
    🍪 Our website uses cookies to make your browsing experience better. By using our website you agree to our use of cookies. Learn more