Graphs & Charts Charts Line Graphs Bar Charts Pie Charts Pictograms Charts We sometimes use charts and diagrams to: Read a bus timetable Complete a table in a catalogue to buy goods Draw up a floor plan Understanding charts and diagrams will help you to use them Charts Some of us may have a road map book of the UK We sometimes use them to find our way from one place to another What is the journey from Edinburgh to London? Find the names of the two cities along the edge of the table Make a note of which city is on top of the chart You track DOWN the column from this one At the same time, note where the other city is From this, you track to the right along the row It helps to use your fingers! You will find the correct answer where your fingers meet The distance between Edinburgh and London is 372 miles Line Graphs Here is an example of a line graph What temperature was it on Wednesday? Find Wednesday on the horizontal axis Lay a ruler up from this point and note where it crosses the line Then lay a ruler across to the vertical axis Read off the answer You should get 19°C The value is half-way between the marks for 18° and 20° What are the temperatures for Monday and Sunday? The temperature for Monday is 18°C and the temperature for Sunday is 26°C Bar Charts Holiday brochures display a lot of information in the form of charts and diagrams These might help you to: Work out the price of your holiday Work out the times of ferries or planes Know when it will be too hot or too cold Learn about the layout of the town/island/country What if you are planning a holiday abroad, but don't want to go when it is very hot? It's likely you'll be interested in the temperature information This is often displayed in a bar chart Bar Charts The temperature in January is 22°C and then it rises to 40°C in May You might decide to go on holiday in January because the weather will be pleasant but not too hot Find a temperature by looking at the top of a bar Imagine a horizontal line drawn to the scale on the left You could use a ruler! Read the scale at the point where the line crosses it Bar charts should have titles Bar charts should have a scale that is easy to read or use The axes must be labelled Pie Charts Information in newspapers, magazines and leaflets may be displayed as pie charts A pie chart is a good way of displaying data as it is easy to compare the segments Look at this pie chart that shows why people are in debt A pie chart is difficult to read if it has more than six slices It may be difficult to compare slices when they are very similar in size Pictograms Here is an interesting type of diagram called a pictogram How many students have chosen curry as their favourite meal? There are plates of curry in the diagram The key tells us that each plate represents students So the number of students who prefer curry is 4x2=8 So students said curry is their favourite meal Pictograms are good to look at but sometimes it can be hard to pick the best image to use [...]...Pie Charts Information in newspapers, magazines and leaflets may be displayed as pie charts A pie chart is a good way of displaying data as it is easy to compare the segments Look at this pie chart that shows why people are in debt A pie chart is .. .Charts We sometimes use charts and diagrams to: Read a bus timetable Complete a table in a catalogue to buy goods Draw up a floor plan Understanding charts and diagrams will... the point where the line crosses it Bar charts should have titles Bar charts should have a scale that is easy to read or use The axes must be labelled Pie Charts Information in newspapers, magazines... for Monday is 18°C and the temperature for Sunday is 26°C Bar Charts Holiday brochures display a lot of information in the form of charts and diagrams These might help you to: Work out the price