1. Skills Demonstration – The Perfect Bar Chart
Continuous Scale starts at zero
3 Titles
Gaps between the bars

2. Pie Charts A pie chart is a circle made out of sectors.
Each sector represents a proportion of the data.
Pie charts are usually presented in percentages.
The key next to it usually uses a colour code to show what the data represents.

3. Skills Demonstration – The Perfect Pie Chart
Title
Key or legend

4. Scatter Graphs
Scatter graphs are used to see if there is a connection (relationship) between 2 sets of data.
Like the line graph the axes must be evenly spaced, but the scales don’t have to be the same on each axis.
Like the line graph, you plot points on the grid, but you do not join the points.
Money raised in a sponsored walk

5. Scatter Graphs - correlation
Scatter graphs show a positive or negative correlation (relationship) between 2 sets of data.
positive
negative

6. Diagnostic Questions
About how many pounds will I get for €70?
About how many euros will I get for £25?

7. Skills Demonstration – how to draw a Pie chart
Walk
Bike
Car
Bus 9 4 17 6
A group of colleagues were asked how they travel to work.
Draw a chart to show the results of this survey

8. Presenting Your Meal Data
Present your meal nutrients in a correctly constructed bar chart. You will be awarded 4 marks.
Extension task:
Present the k/cals for the items you selected in a Pie chart (some completed their meal last week.

9. Applying skills
Apply a technique you feel most comfortable with to answer questions. To get good at maths you must do maths!!