Year 9 Resources

English

Spelling, Punctuation and Grammar

Understanding root words – https://www.bbc.co.uk/bitesize/topics/zbmv2sg/articles/zkpgr2p
How to spell plural nouns – https://www.bbc.co.uk/bitesize/topics/zbmv2sg/articles/zfqh92p
How to use suffixes in your writing – https://www.bbc.co.uk/bitesize/topics/zbmv2sg/articles/zjcjy9q
How to memorise tricky spellings – https://www.bbc.co.uk/bitesize/topics/zbmv2sg/articles/zjxqf4j
How to use a dictionary – https://www.bbc.co.uk/bitesize/topics/zbmv2sg/articles/zjyyb82
Revising basic punctuation – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/zbwttrd
When to use brackets – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/zr76trd
When to use a colon – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/zxpfydm
How to use semicolons – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/z6w6cqt
How to use semicolons in a list – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/zhntng8
How to punctuate quotations in an essay – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/zn2n8xs
How to structure and punctuate direct speech in fiction – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/zhqh92p
How to check your apostrophes are correct – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/zd7w7p3
What is a comma? – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/zfmmtv4
How to punctuate independent clauses – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zrxxh39
How to proofread – https://www.bbc.co.uk/bitesize/topics/zr6bxyc/articles/z7vhsrd
What is grammar? – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zr726yc
How to use tenses – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/z7t2vk7
Past v present tense – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/znn6pbk
How to write a complex sentence – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zfxfwty
How to link ideas in sentences – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zvh37nb
How to use the active or passive voice – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zkttng8
Modal verbs – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zfbyb82
How to use subordinating conjunctions – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zfphsrd
What is an adjective? – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zj33rwx
What is a noun? – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/zj33rwx
What is a verb? – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/z4ppfcw
How to use paragraphs – https://www.bbc.co.uk/bitesize/topics/z4hrt39/articles/z2mj8hv
GOOD2LEARN
https://www.good2learn.com/

Mathematics

Foundation

Unit 1 Core Number

Year 9: Foundation: Unit 1 Core Number
N1 Order positive and negative integers, decimals and fractions; use the symbols =, ≠, <, >, ⩽, ⩾
https://corbettmaths.com/2013/04/15/ordering-fractions-decimals-percentages/  
https://corbettmaths.com/2013/02/17/ordering-fractions/

N2 Operations: Apply the four operations, including formal written methods, to positive integers
https://corbettmaths.com/2013/12/19/addition-video-6/
https://corbettmaths.com/2013/12/19/subtraction-video-304/
https://corbettmaths.com/2013/05/18/multiplication-end-number/
https://corbettmaths.com/2012/08/21/dividing-decimals-by-whole-numbers/ 

N2 Operations: Apply the four operations, including formal written methods, to negative integers
https://corbettmaths.com/2013/06/08/negatives-addition-and-subtraction-2/
https://corbettmaths.com/2012/08/20/multiplying-negative-numbers/
https://corbettmaths.com/2012/08/20/dividing-involving-negatives/

N2 Operations: Apply the four operations, including formal written methods, to decimals, both positive and negative
https://corbettmaths.com/2013/02/15/multiplying-decimals-2/
https://corbettmaths.com/2013/02/15/division-by-decimals/
https://corbettmaths.com/2012/08/21/dividing-decimals-by-whole-numbers/

N2 Place Value: Understand and use place value (e.g. when working with very large or very small numbers, and when calculating with decimals)
https://corbettmaths.com/2013/03/29/place-value/
https://app.mymaths.co.uk/1742-lesson/place-value-beyond-10000
https://app.mymaths.co.uk/53-lesson/decimal-place-value

N3 Operations: Use conventional notation for priority of operations, including brackets, powers, roots and reciprocals
https://corbettmaths.com/2013/06/08/order-of-operations/
 
N4 Numbers: Use the concepts and vocabulary of prime numbers, factors (divisors), multiples, common factors, common multiples, highest common factor, lowest common multiple
https://corbettmaths.com/2012/08/24/common-factors-and-hcf/
https://corbettmaths.com/2012/08/11/lcm-and-common-multiples/

N4 Prime Factor Decomposition: Use the concepts and vocabulary prime factorisation, including using product notation and the unique factorisation theorem, highest common factor, lowest common multiple
https://corbettmaths.com/2012/08/20/product-of-primes/
https://corbettmaths.com/2012/08/20/lcm-and-hcf-using-product-of-primes/

N15 Rounding: Round numbers and measures to an appropriate degree of accuracy (decimal places or significant figures)
https://corbettmaths.com/2013/09/07/rounding-to-1-or-2-decimal-places/
https://corbettmaths.com/2013/09/07/rounding-significant-figures/

N14 Rounding: Estimate answers; check calculations using approximation and estimation, including answers obtained using technology
https://corbettmaths.com/2012/08/21/approximation-to-calculations/

N15 Rounding: Use inequality notation to specify simple error intervals due to truncation or rounding
https://corbettmaths.com/2017/12/16/error-intervals/

N16 Rounding: Apply and interpret limits of accuracy
https://corbettmaths.com/2013/10/24/rounding-smallest/

N6 Indices: Use positive integer powers and associated real roots (square, cube and higher), recognise powers of 2, 3, 4, 5
https://corbettmaths.com/2012/08/11/1338/
https://corbettmaths.com/2013/03/24/cube-roots/
https://corbettmaths.com/2012/08/20/powers-indices/

N7 Indices: Calculate with roots and with integer indices
https://corbettmaths.com/2012/08/20/powers-indices/

N9 Standard form: Putting numbers into or out of standard form A ´ 10 n, where 1 ⩽ A < 10 and n is an integer
https://corbettmaths.com/2013/04/28/standard-form/

N9 Standard form: Calculate with standard form A ´ 10 n, where 1 ⩽ A < 10 and n is an integer
https://corbettmaths.com/2013/05/03/standard-form-addition/
https://corbettmaths.com/2013/04/29/standard-form-multiplication/
https://corbettmaths.com/2013/05/03/standard-form-division/
 

Unit 2 Core Algebra

A1: Basic adding, subtracting, multiplying and dividing in algebra
https://corbettmaths.com/2013/03/13/algebraic-notation/  

A2 Substitute numerical values into formulae and expressions, including scientific formulae
https://corbettmaths.com/2012/08/20/substitution-into-expressions/

A4 Simplify and manipulate algebraic expressions (including those involving surds) by collecting like terms
https://corbettmaths.com/2013/12/28/collecting-like-terms-video-9/

A4 Brackets: Simplify and manipulate algebraic expressions (including those involving surds) by multiplying a single term over a bracket
https://corbettmaths.com/2013/12/23/expanding-brackets-video-13/

A4 Factorising: Simplify and manipulate algebraic expressions (including those involving surds) by taking out common factors
https://corbettmaths.com/2013/02/06/factorisation/

A4 Expressions: Simplify and manipulate algebraic expressions (including those involving surds) by simplifying expressions involving sums, products and powers, including the laws of indices.
https://corbettmaths.com/2013/03/13/multiplying-terms/
https://corbettmaths.com/2013/03/13/laws-of-indices-algebra/

A17 Solve linear equations in one unknown algebraically
https://corbettmaths.com/2012/08/24/solving-equations/

A17 Solve linear equations in one unknown algebraically with the unknown on both sides of the equation)
https://corbettmaths.com/2012/08/24/solving-equations-with-letters-on-both-sides/

A21 Forming Equations: Translate simple situations or procedures into algebraic expressions or formulae; derive an equation solve the equation and interpret the solution
https://corbettmaths.com/2013/04/20/forming-and-solving-equations/

A5 Formula: Understand and use standard mathematical formulae; rearrange formulae to change the subject
https://corbettmaths.com/2013/12/23/changing-the-subject-video-7/

A23 Sequences: Generate terms of a sequence from either a term-to-term or a position-to-term rule
https://corbettmaths.com/2012/08/20/the-nth-term-for-linear-sequences/

A24 Sequences: Recognise and use sequences of triangular, square and cube numbers and simple arithmetic progressions
https://corbettmaths.com/2013/11/13/describingrules/

A24 Sequences: Recognise and use sequences of Fibonacci-type sequences, quadratic sequences and simple geometrical progressions (r   n where n is an integer and r is a rational number > 0)
https://corbettmaths.com/2019/03/27/fibonacci-sequences/

A25 Sequences: Deduce expressions to calculate the nth term of linear sequences
https://corbettmaths.com/2012/08/20/the-nth-term-for-linear-sequences/

Unit 4 FDP

R9 Percentages: Interpret percentages as a fraction or a decimal, and interpret these multiplicatively
https://corbettmaths.com/2012/08/19/percentages-to-decimals/
https://corbettmaths.com/2012/08/20/percentages-to-fractions/

N10 Fractions: Converting between decimals and fractions
https://corbettmaths.com/2013/02/15/decimals-to-fractions/

N12 Percentages: Interpret fractions and percentages as operators
https://corbettmaths.com/2012/08/20/percentages-of-amounts-non-calculator/
https://corbettmaths.com/2013/02/15/percentages-of-an-amount-calculator/

R9 Percentages: Express one quantity as a percentage of another
https://corbettmaths.com/2012/08/21/expressing-one-quantity-as-a-percentage-of-another/

R9 Percentages: Interpret percentage changes as a fraction or a decimal, and interpret these multiplicatively
https://corbettmaths.com/2013/03/31/percentage-change/

R9 Percentages: Solve problems involving percentage change, including percentage increase / decrease
https://corbettmaths.com/2012/08/21/increasing-or-decreasing-by-a-percentage/

R9 Percentages: Solve problems involving percentage change original value problems
https://corbettmaths.com/2013/02/15/reverse-percentages/

R16 Percentages: Solve compound interest problems
https://corbettmaths.com/2012/08/21/compound-interest/

N8 Fractions: Calculate exactly with fractions
https://corbettmaths.com/2012/08/21/expressing-one-quantity-as-a-fraction-of-another/
https://corbettmaths.com/2013/02/15/improper-fractions-to-mixed-numbers/
https://corbettmaths.com/2013/02/15/mixed-numbers-to-improper-fractions/
https://corbettmaths.com/2013/02/17/fractions-find-original/

N8 Fractions: Use the four operations of fractions
https://corbettmaths.com/2012/08/21/fractions-addition-and-subtraction/
https://corbettmaths.com/2012/08/21/multiplying-fractions-2/
https://corbettmaths.com/2012/08/21/division-with-fractions/

Unit 5 Linear Graphs

A8 Coordinates: Work with coordinates in all four quadrants
https://corbettmaths.com/2013/04/15/coordinates/
https://corbettmaths.com/2013/04/15/midpoint-of-a-line/

A9 Linear graphs: Plot graphs of equations that correspond to straight-line graphs in the coordinate plane
https://corbettmaths.com/2012/12/23/drawing-graphs-using-xy-tables/
https://corbettmaths.com/2013/05/29/y-equals-graphs/
https://corbettmaths.com/2013/05/29/x-equals-graphs/

A9 Linear graphs: Use the form y = mx + c to identify parallel lines
https://corbettmaths.com/2013/06/06/graphs-parallel-lines/

A10 Linear graphs: Identify and interpret gradients and intercepts of linear functions graphically and algebraically
https://corbettmaths.com/2013/05/15/gradient-of-a-line/
https://corbettmaths.com/2013/05/29/finding-the-equation-of-a-straight-line/
https://corbettmaths.com/2013/04/20/drawing-graphs-using-gradient-and-intercept/

A9 Linear graphs: Find the equation of the line through two given points, or through one point with a given gradient
https://corbettmaths.com/2013/05/28/gradient-between-two-points/
https://corbettmaths.com/2013/06/06/graphs-parallel-lines/
https://corbettmaths.com/2013/05/29/finding-the-equation-passing-through-two-points/

A19 Simultaneous Equations: Find approximate solutions to two simultaneous equations (linear/linear) graphically
https://corbettmaths.com/2019/03/27/solving-simultaneous-equations-graphically/

A19 Simultaneous Equations: Solve two simultaneous equations in two variables (linear/linear) algebraically using the elimination method
https://corbettmaths.com/2013/03/05/simultaneous-equations-elimination-method/

A19 Simultaneous Equations: Solve two simultaneous equations in two variables (linear/linear) algebraically using the substitution method
https://corbettmaths.com/2013/05/07/solving-simultaneous-equations-by-substitution/

A21 Simultaneous Equations: Derive an equation (or two simultaneous equations), solve the equation(s) and interpret the solution
https://corbettmaths.com/2013/04/20/forming-and-solving-equations/

Unit 6 Shape and Angles

G1 Shape Properties: Use conventional terms and notations: points, lines, vertices, edges, planes, parallel lines, perpendicular lines, right angles, polygons, regular polygons and polygons with reflection and / or rotation symmetries
https://corbettmaths.com/2013/04/04/parallel-lines-definition/
https://corbettmaths.com/2013/04/24/perpendicular-lines/
https://corbettmaths.com/2013/05/15/line-symmetry/
https://corbettmaths.com/2012/08/10/rotational-symmetry/

G1 Shape Properties: Use the standard conventions for labelling and referring to the sides and angles of triangles
https://corbettmaths.com/2012/08/09/types-of-triangles/

G4 Shape Properties: Derive and apply the properties and definitions of: special types of quadrilaterals, including square, rectangle, parallelogram, trapezium, kite, rhombus, triangles and other plane figures using appropriate language
https://corbettmaths.com/2013/12/21/names-of-quadrilaterals-video-2/

G12 Shape Properties: Identify properties of the faces, surfaces, edges and vertices of: cubes, cuboids, prisms, cylinders, pyramids, cones and spheres
https://corbettmaths.com/2013/12/27/edges-face-vertices-video-5/

G13 Plans and Elevations: Construct and interpret plans and elevations of 3D shapes
https://corbettmaths.com/2014/01/16/views-and-elevations/

G15 Bearings: Draw and use bearings
https://corbettmaths.com/2013/03/27/bearings/
https://corbettmaths.com/2013/03/27/position-given-bearings-from-two-points/
https://corbettmaths.com/2018/08/31/back-bearings/

G3 Angles: Apply the properties of angles on a straight line
https://corbettmaths.com/2013/12/19/angles-straight-line-video-35/

G3 Angles: Apply the properties of angles at a point
https://corbettmaths.com/2012/08/10/angles-in-a-full-circle/

G3 Angles: Apply the properties of vertically opposite angles
https://corbettmaths.com/2013/03/16/vertically-opposite-angles/

G3 Angles: Understand and use alternate and corresponding angles on parallel lines
https://corbettmaths.com/2013/04/04/parallel-lines-angles/

G3 Angles: Derive and use the sum of angles in a triangle
https://corbettmaths.com/2012/08/10/angles-in-a-triangle/

G3 Angles: Deduce and use the angle sum in any polygon, and derive properties of regular polygons
https://corbettmaths.com/2013/03/17/angles-in-quadrilaterals/
https://corbettmaths.com/2012/08/10/angles-in-polygons/

Higher

Unit 1 Core Higher

N1 Order positive and negative integers, decimals and fractions; use the symbols =, ≠, <, >, ⩽, ⩾
https://corbettmaths.com/2013/04/15/ordering-fractions-decimals-percentages/  
https://corbettmaths.com/2013/02/17/ordering-fractions/

N2 Operations: Apply the four operations, including formal written methods, to positive integers
https://corbettmaths.com/2013/12/19/addition-video-6/
https://corbettmaths.com/2013/12/19/subtraction-video-304/
https://corbettmaths.com/2013/05/18/multiplication-end-number/
https://corbettmaths.com/2012/08/21/dividing-decimals-by-whole-numbers/ 

N2 Operations: Apply the four operations, including formal written methods, to negative integers
https://corbettmaths.com/2013/06/08/negatives-addition-and-subtraction-2/
https://corbettmaths.com/2012/08/20/multiplying-negative-numbers/
https://corbettmaths.com/2012/08/20/dividing-involving-negatives/

N2 Operations: Apply the four operations, including formal written methods, to decimals, both positive and negative
https://corbettmaths.com/2013/02/15/multiplying-decimals-2/
https://corbettmaths.com/2013/02/15/division-by-decimals/
https://corbettmaths.com/2012/08/21/dividing-decimals-by-whole-numbers/

N2  Understand and use place value (e.g. when working with very large or very small numbers, and when calculating with decimals)
https://corbettmaths.com/2013/03/29/place-value/

N2 Solving financial problems using credits, debits and balances (e.g. balance sheets and bank statements)
https://corbettmaths.com/2022/01/06/bank-statements-video/

N3 Operations: Use conventional notation for priority of operations, including brackets, powers, roots and reciprocals
https://corbettmaths.com/2013/06/08/order-of-operations/

N4 Numbers: Use the concepts and vocabulary of prime numbers, factors (divisors), multiples, common factors, common multiples, highest common factor, lowest common multiple
https://corbettmaths.com/2012/08/24/common-factors-and-hcf/
https://corbettmaths.com/2012/08/11/lcm-and-common-multiples/

N4 Prime Factor Decomposition: Use the concepts and vocabulary prime factorisation, including using product notation and the unique factorisation theorem, highest common factor, lowest common multiple
https://corbettmaths.com/2012/08/20/product-of-primes/
https://corbettmaths.com/2012/08/20/lcm-and-hcf-using-product-of-primes/

N15 Rounding: Round numbers and measures to an appropriate degree of accuracy (decimal places or significant figures)
https://corbettmaths.com/2013/09/07/rounding-to-1-or-2-decimal-places/
https://corbettmaths.com/2013/09/07/rounding-significant-figures/

N14 Rounding: Estimate answers; check calculations using approximation and estimation, including answers obtained using technology
 https://corbettmaths.com/2012/08/21/approximation-to-calculations/

N15 Rounding: Use inequality notation to specify simple error intervals due to truncation or rounding
https://corbettmaths.com/2017/12/16/error-intervals/

N16 Rounding: Apply and interpret limits of accuracy including upper and lower bounds
https://corbettmaths.com/2013/10/24/rounding-smallest/
https://corbettmaths.com/2017/12/16/error-intervals/

N6 Indices: Use positive integer powers and associated real roots (square, cube and higher), recognise powers of 2, 3, 4, 5 estimate powers and roots of any given positive number
https://corbettmaths.com/2012/08/11/1338/
https://corbettmaths.com/2013/03/24/cube-roots/
https://corbettmaths.com/2012/08/20/powers-indices/

N7 Indices: Calculate with roots and with integer and fractional indices, including negatives
https://corbettmaths.com/2013/03/03/fractional-indices/

N9 Standard form: Putting numbers into or out of standard form A ´ 10 n, where 1 ⩽ A < 10 and n is an integer
https://corbettmaths.com/2013/04/28/standard-form/

N9 Standard form: Calculate with standard form A ´ 10 n, where 1 ⩽ A < 10 and n is an integer
https://corbettmaths.com/2013/05/03/standard-form-addition/
https://corbettmaths.com/2013/04/29/standard-form-multiplication/
https://corbettmaths.com/2013/05/03/standard-form-division/

N8 Surds: Calculate exactly with surds and simplify surd expressions involving squares and rationalise denominators
https://corbettmaths.com/2013/05/11/surds/
https://corbettmaths.com/2013/05/11/surds-addition/
https://corbettmaths.com/2013/05/11/surds-expanding-brackets/
https://corbettmaths.com/2013/05/11/rationalising-denominators/

Unit 2 Core Algebra

A1 Algebraic Expressions: basic adding, subtracting, multiplying and dividing
https://corbettmaths.com/2013/03/13/algebraic-notation/

A2 Substitute numerical values into formulae and expressions, including scientific formulae
https://corbettmaths.com/2012/08/20/substitution-into-expressions/

A4 Expressions: Simplify and manipulate algebraic expressions (including those involving surds) by collecting like terms
https://corbettmaths.com/2013/12/28/collecting-like-terms-video-9/

A4 Brackets: Simplify and manipulate algebraic expressions (including those involving surds) by multiplying a single term over a bracket
https://corbettmaths.com/2013/12/23/expanding-brackets-video-13/

A4 Factorising: Simplify and manipulate algebraic expressions (including those involving surds) by taking out common factors
https://corbettmaths.com/2013/02/06/factorisation/

A4 Simplify and manipulate algebraic expressions (including those involving surds) by simplifying expressions involving sums, products and powers, including the laws of indices.
https://corbettmaths.com/2013/03/13/multiplying-terms/
https://corbettmaths.com/2013/03/13/laws-of-indices-algebra/

A4 Double Brackets: Simplify and manipulate algebraic expressions (including those involving surds) by expanding products of two or morebinomials
https://corbettmaths.com/2013/12/23/expanding-two-brackets-video-14/
https://corbettmaths.com/2013/12/27/expanding-three-brackets-video-15/

A4 Factorising Quadratics: Simplify and manipulate algebraic expressions (including those involving surds) by factorising quadratic expressions of the form x2 + bx + c, including the difference of two squares
https://corbettmaths.com/2013/02/06/factorising-quadratics-1/ 
https://corbettmaths.com/2013/02/08/difference-between-two-squares/

A4 Factorising Quadratics: Simplify and manipulate algebraic expressions (including those involving surds) factorising quadratic expressions of the form ax2 + bx + c
https://corbettmaths.com/2013/02/07/factorising-quadratics-2/
https://corbettmaths.com/2019/03/26/splitting-the-middle-term/

A17 Solve linear equations in one unknown algebraically
https://corbettmaths.com/2012/08/24/solving-equations/

A17 Solve linear equations in one unknown algebraically with the unknown on both sides of the equation)
https://corbettmaths.com/2012/08/24/solving-equations-with-letters-on-both-sides/

A21 Forming equations: Translate simple situations or procedures into algebraic expressions or formulae; derive an equation solve the equation and interpret the solution
https://corbettmaths.com/2013/04/20/forming-and-solving-equations/

A5 Formula: Understand and use standard mathematical formulae; rearrange formulae to change the subject
https://corbettmaths.com/2013/12/23/changing-the-subject-video-7/
https://corbettmaths.com/2013/12/28/changing-the-subject-advanced-video-8/

A23 Sequences: Generate terms of a sequence from either a term-to-term or a position-to-term rule
https://corbettmaths.com/2012/08/20/the-nth-term-for-linear-sequences/

A24 Sequences: Recognise and use sequences of triangular, square and cube numbers and simple arithmetic progressions
https://corbettmaths.com/2013/11/13/describingrules/

A24 Sequences: Recognise and use sequences of Fibonacci-type sequences, quadratic sequences and simple geometrical progressions (r   n where n is an integer and r is a rational number > 0 or a surd)and other sequences
https://corbettmaths.com/2019/03/27/fibonacci-sequences/

A25 Sequences: Deduce expressions to calculate the nth term of linear and quadratic sequences
https://corbettmaths.com/2012/08/20/the-nth-term-for-linear-sequences/
https://www.youtube.com/watch?v=X3-ngfajjcw

Unit 4 FDP

R9 Percentages: Define percentage as ‘number of parts per 100’
 
R9 Percentages: Interpret percentages as a fraction or a decimal, and interpret these multiplicatively
https://corbettmaths.com/2012/08/19/percentages-to-decimals/
https://corbettmaths.com/2012/08/20/percentages-to-fractions/

N10 Fractions: Convert between decimals and fractions
https://corbettmaths.com/2013/02/15/decimals-to-fractions/

N10 Fractions: Change recurring decimals into their corresponding fractions and vice versa
https://corbettmaths.com/2013/03/29/recurring-decimals-to-fractions/

N12 Percentages: Interpret fractions and percentages as operators
https://corbettmaths.com/2012/08/20/percentages-of-amounts-non-calculator/
https://corbettmaths.com/2013/02/15/percentages-of-an-amount-calculator/

R9 Percentages: Express one quantity as a percentage of another
https://corbettmaths.com/2012/08/21/expressing-one-quantity-as-a-percentage-of-another/

R3 Fractions: Express one quantity as a fraction of another, where the fraction is less than 1 or greater than 1

R9 Percentages:  Interpret percentage changes as a fraction or a decimal, and interpret these multiplicatively
https://corbettmaths.com/2013/03/31/percentage-change/R9 Percentages: Solve problems involving percentage change, including percentage increase / decrease
https://corbettmaths.com/2012/08/21/increasing-or-decreasing-by-a-percentage/

R9 Percentages: Solve problems involving percentage change original value problems
https://corbettmaths.com/2013/02/15/reverse-percentages/

R9 Percentages: Solve problems involving simple interest including in financial mathematics
 
R16 Percentages: Solve compound interest problems
https://corbettmaths.com/2012/08/21/compound-interest/

N8 Fractions: Calculate exactly with fractions
https://corbettmaths.com/2012/08/21/expressing-one-quantity-as-a-fraction-of-another/
https://corbettmaths.com/2013/02/15/improper-fractions-to-mixed-numbers/
https://corbettmaths.com/2013/02/15/mixed-numbers-to-improper-fractions/
https://corbettmaths.com/2013/02/17/fractions-find-original/

N8 Fractions: Use the four operations of fractions
https://corbettmaths.com/2012/08/21/fractions-addition-and-subtraction/
https://corbettmaths.com/2012/08/21/multiplying-fractions-2/
https://corbettmaths.com/2012/08/21/division-with-fractions/

A4 Fractions: Simplify and manipulate algebraic fractions
https://corbettmaths.com/2013/01/19/adding-algebraic-fractions/
https://corbettmaths.com/2013/01/19/multiplying-algebraic-fractions/
https://corbettmaths.com/2013/01/19/dividing-algebraic-fractions/
https://corbettmaths.com/2013/01/19/simplifying-algebraic-fractions/

Unit 5 Linear Graphs

A8 Coordinates: Work with coordinates in all four quadrants
https://corbettmaths.com/2013/04/15/coordinates/
https://corbettmaths.com/2013/04/15/midpoint-of-a-line/
https://corbettmaths.com/2013/04/20/3d-coordinates/

A9 Linear graphs: Plot graphs of equations that correspond to straight-line graphs in the coordinate plane
https://corbettmaths.com/2012/12/23/drawing-graphs-using-xy-tables/
https://corbettmaths.com/2013/05/29/y-equals-graphs/
https://corbettmaths.com/2013/05/29/x-equals-graphs/

R14 Linear graphs: Interpret the gradient of a straight line graph as a rate of change
 https://corbettmaths.com/2021/11/18/real-life-graphs-video/

A9 Linear graphs: Use the form y = mx + c to identify parallel lines
https://corbettmaths.com/2013/06/06/graphs-parallel-lines/

A10 Linear graphs: Identify and interpret gradients and intercepts of linear functions graphically and algebraically
https://corbettmaths.com/2013/05/15/gradient-of-a-line/
https://corbettmaths.com/2013/05/29/finding-the-equation-of-a-straight-line/
https://corbettmaths.com/2013/04/20/drawing-graphs-using-gradient-and-intercept/

A9 Linear graphs: Find the equation of the line through two given points, or through one point with a given gradient
https://corbettmaths.com/2013/05/28/gradient-between-two-points/
https://corbettmaths.com/2013/06/06/graphs-parallel-lines/
https://corbettmaths.com/2013/05/29/finding-the-equation-passing-through-two-points/

A9 Linear graphs: Use the form y = mx + c to identify perpendicular lines
https://corbettmaths.com/2013/04/24/perpendicular-lines/

A19 Simultaneous Equations: Find approximate solutions to two simultaneous equations (linear/linear) graphically
https://corbettmaths.com/2019/03/27/solving-simultaneous-equations-graphically/

A19 Simultaneous Equations: Solve two simultaneous equations in two variables (linear/linear) algebraically using the elimination method
https://corbettmaths.com/2013/03/05/simultaneous-equations-elimination-method/

A19 Simultaneous Equations: Solve two simultaneous equations in two variables (linear/linear) algebraically using the substitution method
https://corbettmaths.com/2013/05/07/solving-simultaneous-equations-by-substitution/

A21 Simultaneous Equations: Derive an equation (or two simultaneous equations), solve the equation(s) and interpret the solution
https://corbettmaths.com/2013/04/20/forming-and-solving-equations/

Unit 6 Shape and Angles

G1 Shape Properties: Use conventional terms and notations: points, lines, vertices, edges, planes, parallel lines, perpendicular lines, right angles, polygons, regular polygons and polygons with reflection and / or rotation symmetries
https://corbettmaths.com/2013/04/04/parallel-lines-definition/
https://corbettmaths.com/2013/04/24/perpendicular-lines/
https://corbettmaths.com/2013/05/15/line-symmetry/
https://corbettmaths.com/2012/08/10/rotational-symmetry/

G1 Shape Properties: Use the standard conventions for labelling and referring to the sides and angles of triangles
https://corbettmaths.com/2012/08/09/types-of-triangles/

G4 Shape Properties: Derive and apply the properties and definitions of: special types of quadrilaterals, including square, rectangle, parallelogram, trapezium, kite, rhombus, triangles and other plane figures using appropriate language
https://corbettmaths.com/2013/12/21/names-of-quadrilaterals-video-2/

G12 Shape Properties: Identify properties of the faces, surfaces, edges and vertices of: cubes, cuboids, prisms, cylinders, pyramids, cones and spheres
https://corbettmaths.com/2013/12/27/edges-face-vertices-video-5/

G13 Plans and Elevations: Construct and interpret plans and elevations of 3D shapes
https://corbettmaths.com/2014/01/16/views-and-elevations/

G15 Bearings: Draw and use bearings
https://corbettmaths.com/2013/03/27/bearings/
https://corbettmaths.com/2013/03/27/position-given-bearings-from-two-points/
https://corbettmaths.com/2018/08/31/back-bearings/

G3 Angles: Apply the properties of angles on a straight line
https://corbettmaths.com/2013/12/19/angles-straight-line-video-35/

G3 Angles: Apply the properties of angles at a point
https://corbettmaths.com/2012/08/10/angles-in-a-full-circle/

G3 Angles: Apply the properties of vertically opposite angles
https://corbettmaths.com/2013/03/16/vertically-opposite-angles/

G3 Angles: Understand and use alternate and corresponding angles on parallel lines
https://corbettmaths.com/2013/04/04/parallel-lines-angles/

G3 Angles: Derive and use the sum of angles in a triangle
https://corbettmaths.com/2012/08/10/angles-in-a-triangle/

G3 Angles: Deduce and use the angle sum in any polygon, and derive properties of regular polygons
https://corbettmaths.com/2013/03/17/angles-in-quadrilaterals/
https://corbettmaths.com/2012/08/10/angles-in-polygons/

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