Rearrange an equation to produce an iterative formula. Understand that there can be more than one iterative formula for an equation. Use an iterative formula to solve an equation.
Understand and write proportions as fractions and as algebraic relationships. Compare ratios and fractions. Express one variable in terms of another when represented as a ratio.
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.
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.