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Reading bar charts

Reading bar charts LO: to solve a problem by organising and interpreting data in bar charts with intervals in ones and twos. Look at the way a bar chart is constructed. Can you name its different parts?. What goes here?. What is this called?. What is this?. What do we call this?.

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Reading bar charts

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  1. Reading bar charts LO: to solve a problem by organising and interpreting data in bar charts with intervals in ones and twos.

  2. Look at the way a bar chart is constructed. Can you name its different parts? What goes here? What is this called? What is this? What do we call this?

  3. A bar chart always has a title. Vertical axis (y). Always labelled and numbered. The height of the bars show how many of something was scored/recorded. Horizontal axis (x). Always labelled.

  4. 8 7 6 5 4 3 2 1 What does this bar chart show? How many children were surveyed? Which is the favourite flavour? Which is the least liked? What intervals are used on the y axis? What intervals could you use if twice as many children were surveyed? Can you read the answers? Favourite Crisps Number of children 0 Salt and vinegar Cheese and onion Prawn cocktail Ready salted Bacon Worcester sauce Barbeque Flavours

  5. How can you collect the information needed to construct a bar chart? By making a tally chart first!

  6. Flavour Tally Insert any other flavours here

  7. Tables 1 and 2: • Working in table groups, survey all the children on your tables using the tally chart template. Find out THEIR favourite crisps. • Then working in pairs, construct a bar chart showing the favourite crisps in our class. With support

  8. Tables 3 and 4: • Working in threes, shuffle and then deal 30 Pokémon cards. Sort into card types. • Fill in the tally chart and draw a bar chart showing card types in a typical deal.

  9. Pokémon card tally sheet Card type Tally

  10. Table 5: • Working in pairs, deal out 25 Jackie Chan cards and sort them into different types. • Fill in the tally chart and create a bar chart to show card types in a typical deal.

  11. Jackie Chan Tally Sheet Card type Tally

  12. A Tabitha Mellor production

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