Year 8 - Maths
Constructing pie charts by utilising technology
Graphical representations of data
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Study Guides
This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will interpret and construct a range of representations of data including bar charts, pie charts and scatter graphs.
Lesson Summary
You will learn to construct pie charts from data presented in a number of different ways using technology.
Key Notes
- Pie charts can be constructed quickly using Excel.
- The angle of each part can be quickly calculated in Excel.
- Different types of pie chart can be created.
Vocabulary To Learn
- Clockwise: Clockwise is the direction that the hands of an analogue clock travel
- Pie chart: A pie chart (pie graph) is a circular graph where sectors represent different groups proportionally.
- Frequency: The frequency is the number of times an event occurs; or the number of individuals (people, animals etc.) with some specific property.
- Angle: An angle is a measure of turn, it is often displayed as the rotation between two line segments.
- Sector: A sector is the region formed between two radii and their connecting arc.
Common Mistakes To Avoid
- 1) = not necessary to put into function, 2) students type in number to calculate, not click the cell
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Pie charts can be constructed quickly using Excel. The angle of each part can be quickly calculated in Excel.
2. Use this key word in a maths sentence and explain it clearly. 'Clockwise'
Clockwise is the direction that the hands of an analogue clock travel. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: 1) = not necessary to put into function, 2) students type in number to calculate, not click the cell. Correction: 1) the = at the start tells the spreadsheet to start a calculation, 2) clicking the cell means if input data chances, outputs auto-update.
More Lessons In This Unit
- Checking understanding of pictograms and bar charts Study Guide
- Constructing bar charts by utilising technology Study Guide
- Constructing pie charts Study Guide
- Constructing scatter graphs Study Guide
- Constructing scatter graphs by utilising technology Study Guide
- Interpreting pie charts Study Guide
- Interpreting scatter graphs Study Guide
- Problem solving with graphical representations of data Study Guide
- Securing constructing bar charts by hand Study Guide
- Securing constructing pictograms Study Guide
Browse all guides in the Year 8 Maths guide library.