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Year 3 Key Upgrade
At Grade 8, verification alone is no longer enough — you must justify: explain WHY a rule works, not just check that it does. Always state the method before applying it.
The six index laws, simplifying surds, rationalising denominators, standard form, and operations with irrational numbers.
Index Laws
Surds
Rationalising
Standard Form
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Linear functions (y = mx + c), graphing, simultaneous equations by substitution and elimination, intro to quadratics and factorising.
Linear Functions
Simultaneous Eq.
Quadratics
Sequences
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Pythagoras' theorem, SOHCAHTOA, finding sides and angles, angles of elevation/depression, 3D applications, surface area and volume.
Pythagoras
SOHCAHTOA
Angles
3D Shapes
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Mean, median, mode, quartiles, IQR, box plots, histograms, scatter plots, correlation, and the line of best fit.
Averages
Box Plots
Scatter Plots
Correlation
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