Recognise and use the graph of a direct proportion relationship.
Review of straight line graphs. Link with directly proportional graphs and +ve x-axis. Worked examples and questions
Understand the difference between average and instantaneous change and the difference between using chords and tangents for measuring rates of change, and choose as appropriate.
5 lessons covering
Direct Proportion Graphs
Inverse Proportion Graphs
Gradients and Rates of Change
Gradients and Instantaneous Change
Gradients and Average Change
4 lessons covering:
Problem Solving
Spreadsheets
Sequences
Flowcharts
All lesson have starters. worked examples and question slides. All answers included.
How to use fractions to explain proportional relationships. How to calculate complicated proportional relationships, without a calculator, using fractions.
Understand a proportional relationship and how they appear. Find how to calculate outputs from directly proportional relationships using dual-number lines, bar-models and proportion grids.