2. WALT – interpret data using bar charts. 18.01.10

3. What do we know about bar charts already?

4. We know a bar chart should: have a title. have numbered and labelled axis. have clear bars showing how much of something has been observed/recorded. be numbered with sensible intervals. answer questions about the data.

5. Horizontal axis (x). Always labelled. Vertical axis (y). Always labelled and numbered. A bar chart always has a title. The height of the bars show how many of something was scored/recorded. It might also have a ‘legend’. This shows what the colour of each bar represents.

6. A Bar Chart to show children’s favourite toys. Go-go Hamster He-manTransformersSpace Hopper Ben 10MarblesBMXLego Favourite toy Number of children x 12 11 10 9 8 7 6 5 4 3 2 1 y 12 11 10 9 8 7 6 5 4 3 2 1 y

7. Looking at the bar chart, answer the following questions... 1.Which is the most popular toy? 2.How many children chose go-go hamster as their favourite toy? 3.Which is the least popular toy? 4.How many children altogether chose Ben 10 and transformers as their favourite toys?