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HIGHER Maths GCSE Unit 3 Revision List (Higher only topics highlighted) Topic Notes Circles – name parts of a circle; Calculate area and circumference Calculate lengths of arcs and areas of sectors Know and use Circle Theorems Angles – in a triangle, quadrilateral, on a line, in polygons, on parallel lines Describe reflection and rotation symmetry in 2D shapes Constructions (triangles; angle and line bisectors) and Loci Quadrilaterals – names, side, diagonal and angle properties Perimeter and Area – rectangle, parallelogram, triangle, trapezium, circle Maths GCSE Unit 3 H Revision List March 2012 Revision work done Topic Notes 3D Shapes – names, nets, plans, elevations, faces, edges, vertices Volume – cuboids and prisms Cones, spheres, frustums TERRy – Translate, Enlarge, Rotate, Reflect Use fractional and negative scale factors for enlargements Vectors – add and subtract, multiply by a scalar, find the resultant of 2 vectors. Solve geometrical problems Measures – metric and Imperial, conversions (e.g. 5 miles = 8km), reading scales Bearings and Scale Drawing Maths GCSE Unit 3 H Revision List March 2012 Revision work done Topic Notes Enlargement and Similar Shapes (inc. perimeter, area and volume) Understand and use conditions for congruent triangles Pythagoras’ theorem (right angled triangles) c2 = a2 + b2 Use Pythagoras in 3D problems Use SOH CAH TOA to find sides and angles in right angled triangles Use Sine Rule and Cosine Rule to find sides and angles in non right angled triangles Use ½ ab sinC to calculate the area of a triangle Maths GCSE Unit 3 H Revision List March 2012 Revision work done Topic Notes Straight Line Graphs – plot graphs from equations Use 3D co-ordinates Quadratic Graphs – plot curved graphs from equations, find points of intersection between a curve and a line Choose the correct curve and line to plot to solve an equation Recognise and sketch graphs of: Simple cubics, y = 1/x, y = kx, y = sin x, y = cos x Transform graphs by translating, stretching and reflecting Trial and Improvement – find answers to 1 d.p. Expand single brackets and simplify expressions Multiply two brackets together Factorise expressions by taking out a common factor Maths GCSE Unit 3 H Revision List March 2012 Revision work done Topic Notes Substitute positive and negative numbers into a formula Write a formula to represent a real life situation Form and solve equations – with and without brackets, sometimes x on both sides Solve a pair of simultaneous equations Solve quadratic equations – by factorisation and by using the quadratic formula Maths GCSE Unit 3 H Revision List March 2012 Revision work done Topic Notes Round numbers to a given number of decimal places or significant figures Convert between fractions, decimals and percentages Use equivalent fractions to solve problems Find a fraction of a quantity Find a percentage of a quantity Increase or decrease an amount by a percentage One no as % of another Calculate an increase or decrease as a percentage Simplify a Ratio Split a number into a ratio Solve ratio and proportion problems (use the unitary method) Solve problems involving direct and indirect proportion and exponential growth Maths GCSE Unit 3 H Revision List March 2012 Revision work done