Exploring mathematics: Tier 7 NC levels 8 and EP Autumn 35 lessons N7.1 Powers and roots Zero and negative powers Fractional indices and the index laws Rational and irrationals numbers Surds 3 lessons Spring 32 lessons S7.2 Probability 1 Mutually exclusive independent events Outcomes of compound events and calculations of probabilities 5/6 lessons N7.2 Decimals and accuracy Significant figures and estimating results of calculations Standard form calculations Bounds of intervals and accuracy of measurements Dimensions 5 lessons N7.3 Proportional reasoning Repeated proportional change Direct and inverse proportion, including algebraic methods Proportion and square roots 4/5 lessons R7.1 Revision/support Number, algebra, geometry and measures, statistics 5 lessons Summer 33 lessons S7.3 Enquiry 2 Sampling Histograms (unequal class intervals) Moving average Cumulative frequency, box plots Estimating mean, median and interquartile range 7/8 lessons S7.4 Probability 2 Probability investigation 4/5 lessons A7.2 Expressions and formulae Simplifying more complex expressions. Factorising quadratic expressions Changing the subject of more complex formulae 6 lessons A7.3 Equations Solving equations with algebraic fractions Solving quadratic equations graphically and algebraically by factorisation, completing the square or by formula Solving simultaneous equations (one linear, one quadratic) graphically and algebraically 7/8 lessons A7.4 Functions and graphs Graphs of simple loci, including a circle Graphs of linear, quadratic, cubic, reciprocal, trigonometric and exponential functions Transforming graphs of functions 8/9 lessons 100 lessons 1 | Exploring mathematics | Tier 6 (brown) G7.2 Trigonometry 1 Pythagoras' theorem in 2D and 3D Using sine, cosine and tangent to solve problems in 2D 3 lessons G7.3 Geometrical reasoning Circle theorems Similarity and congruence 7 lessons R7.2 Revision/support Number, algebra, geometry and measures, statistics 5 lessons N7.4 Using and applying maths Investigating problems Algebraic proof History of mathematics Careers in mathematics 3/4 lessons G7.1 Measures and mensuration Sectors and arcs Volume and surface area of cones, pyramids and spheres Problem solving and more complex shapes 5/6 lessons G7.4 Transformations and vectors Transformation patterns Vector notation; sum of two vectors; commutative and associative properties Scalar multiple of a vector; resultant of two vectors; problem solving 5/6 lessons G7.5 Trigonometry 2 Sine and cosine rules Formula for area of scalene triangle Solving problems in 2D and 3D using trigonometry and Pythagoras 6/7 lessons Mathematical processes and applications are integrated into each unit S7.1 Enquiry 1 Sampling and reliability Non-responses and missing data Histograms with equal class intervals Moving average 6 lessons A7.1 Linear graphs and inequalities Parallel or perpendicular straight line graphs Inequalities in two variables 6 lessons Units SUPPORT Number 1: Powers and roots (3 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • recognise that a recurring decimal is an exact • model contexts or problems through precise use of symbols and fraction • use the index laws to multiply and divide positive Integers, powers and roots CORE and negative integer powers representations • select and apply a range of mathematics and mathematical techniques to find solutions (56–59) • use the power and root keys of a calculator • show insight into mathematical connections in the context or problem Calculations • estimate square roots and cube roots. • use accurate notation (108–109) • calculate accurately, using mental methods or calculating devices as appropriate • extend generalisations • examine critically strategies adopted and arguments presented • communicate solutions to problems in familiar and unfamiliar contexts and to: • understand and use rational and irrational numbers • use the index laws for fractional values • use inverse operations, understanding that the inverse of raising a positive number to power power 1 n n is raising the result of this operation to • use surds and in exact calculations, without a calculator, and rationalise a denominator such as 1 3 3 3 . § Objectives in colour lay the groundwork for Functional Skills at level 2. 2 | Exploring mathematics | Tier 6 (brown) Number 2: Decimals and accuracy (5 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • round numbers to a given number of decimal • choose and combine representations from a range of perspectives places • multiply and divide by powers of 10 Place value (36–47) Calculations (88–107, 110–111) • understand the effects of multiplying or dividing by numbers between 0 and 1 • express numbers in standard form, including by using a calculator • show insight into mathematical connections in the context or problem • select and apply a range of mathematics and mathematical techniques to find solutions • manipulate numbers and apply routine algorithms • calculate accurately, using mental methods or calculating devices as appropriate Calculator methods • convert between units of measurement • use accurate notation (108–109) • recognise that measurements may be inaccurate • follow through a sustained chain of reasoning Solving problems (28–31) Measures and mensuration (230–233) by up to one half of the unit in either direction • use a calculator efficiently. • use appropriate checking procedures, evaluating their effectiveness at each stage • recognise limitations in the accuracy of results and conclusions • examine critically strategies adopted and arguments presented and to: • use significant figures to approximate answers when multiplying or dividing large numbers • use standard index form to make sensible estimates for calculations involving multiplication and/or division • calculate with standard index form, using a calculator as appropriate • understand how errors can be compounded in calculations • understand upper and lower bounds and use calculators, or written methods, to calculate the upper and lower bounds of calculations in a range of contexts, particularly when working with measurements • consider the dimensions of a formula and recognise the difference between formulae for perimeter, area and volume. § Objectives in colour lay the groundwork for Functional Skills at level 2. 3 | Exploring mathematics | Tier 6 (brown) Number 3: Proportional reasoning (5 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • divide a quantity in a given ratio • choose and combine representations from a range of perspectives • multiply and divide fractions • show insight into mathematical connections in the context or problem Fractions, decimals, percentages, • calculate interest • select and apply a range of mathematics and mathematical techniques to ratio and proportion (64–65, 78–81) • calculate reverse percentage changes using a decimal multiplier Calculations (82–103, 108–111) • use the unitary method for direct proportion • use compound measures such as rate, speed and density • enlarge 2D shapes, and recognise the effect of enlargement on perimeter. find solutions • explore mathematical tasks, developing alternative approaches • calculate accurately, using mental methods or calculating devices as appropriate • follow through a sustained chain of reasoning • use appropriate checking procedures, evaluating their effectiveness at each stage • recognise limitations in the accuracy of results and conclusions • examine critically strategies adopted and arguments presented and to: • use fractions or percentages to solve problems involving repeated proportional changes, or the calculation of the original quantity given the proportional change, e.g. compound interest • use calculators to explore exponential growth and decay, using a multiplier and the power key • calculate an unknown quantity from quantities that vary in direct proportion using algebraic methods where appropriate • solve problems involving inverse proportion (including inverse squares) using algebraic methods • understand and use the effects of enlargement on areas and volumes of shapes and solids. § Objectives in colour lay the groundwork for Functional Skills at level 2. 4 | Exploring mathematics | Tier 6 (brown) Number 4: Using and applying mathematics (4 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • choose and combine representations from a • solve routine and non-routine problems in a range of familiar and range of perspectives • sub-divide problems to make solving them more manageable Solving problems (2–35) • select and apply a range of mathematics and techniques to find solutions • present and explain methods and solutions, interpreting results, including calculator results, in the context of the problem. unfamiliar contexts • show insight into mathematical connections in the context or problem • model contexts or problems through precise use of symbols and representations • select and apply a range of mathematics and mathematical techniques to find solutions • follow through a sustained chain of reasoning, including proof • consider the efficiency of alternative lines of enquiry or procedures • draw conclusions, providing mathematical justifications • use mathematical language and symbols effectively to communicate convincing arguments and solutions • identify other contexts or problems with similar structures and explain how and why the same or different strategies were used and to: • be aware of some current applications of mathematics • gain a sense of the history of mathematics and cultural influences on its development. § Objectives in colour lay the groundwork for Functional Skills at level 2. 5 | Exploring mathematics | Tier 6 (brown) Algebra 1: Linear graphs and inequalities (6 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • simplify algebraic expressions by taking out • model contexts or problems through precise use of symbols and single-term common factors, including cancelling an algebraic fraction Equations, formulae and identities (118–121, 126–131) • use algebraic and graphical methods to solve a pair of simultaneous linear equations. representations • select and apply a range of mathematics and mathematical techniques to find solutions • show insight into mathematical connections in the context or problem Solving problems • use accurate notation (6–13) • manipulate algebraic expressions and equations • draw accurate graphs on paper and on screen • consider the assumptions in the model and recognise limitations in the accuracy of results and conclusions and to: • identify the equations of straight-line graphs that are parallel and find the gradient and equation of a straight-line graph that is perpendicular to a given line • solve linear inequalities in one and two variables find and represent the solution set • explore ‘optimum’ methods of solving simultaneous equations in different forms. § Objectives in colour lay the groundwork for Functional Skills at level 2. 6 | Exploring mathematics | Tier 6 (brown) Algebra 2: Expressions and formulae (6 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • simplify expressions by taking out common • model contexts or problems through precise use of symbols and factors • substitute integers into expressions and formulae representations • select and apply a range of mathematics and mathematical techniques to find solutions Equations, formulae and identities • simplify algebraic fractions (118–121, 138–143) • solve linear equations with fraction coefficients • use accurate notation • square a linear expression, expand the product of • manipulate algebraic expressions and equations two linear expressions of the form ax b • follow through a sustained chain of reasoning • establish identities such as a2 – b2 = (a + b)(a – b) and to: • change the subject of a formula. • factorise quadratic expressions, including the difference of two squares, e.g. x 2 9 ( x 3)( x 3) • cancel common factors in rational expressions, 2( x 1)2 e.g. ( x 1) • simplify simple algebraic fractions to produce linear expressions and use factorisation to simplify compound algebraic fractions • derive and use more complex formulae, and change the subject of a formula, including cases where the subject occurs twice • derive relationships between different formulae that produce equal or related results. § Objectives in colour lay the groundwork for Functional Skills at level 2. 7 | Exploring mathematics | Tier 6 (brown) Algebra 3: Solving equations (8 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • factorise quadratic expressions • model contexts or problems through precise use of symbols and • find approximate solutions of equations such as x3 + x = 20 Sequences, functions and graphs (148–163, 172–177) Solving problems (26–27) • plot the graphs of linear functions and their inverses • identify and use the gradients of parallel lines and lines perpendicular to these lines • solve linear inequalities in one variable, and represent the solution set on a number line • use graphical and algebraic methods to solve simultaneous linear equations in two variables. representations • select and apply a range of mathematics and mathematical techniques to find solutions • draw accurate graphs on paper and on screen • manipulate algebraic expressions and equations • explore mathematical tasks, developing alternative approaches • follow through a sustained chain of reasoning • recognise limitations in the accuracy of results and conclusions and to: • solve equations involving algebraic fractions with compound expressions as the numerators and/or denominators • find approximate solutions of a quadratic equation from the graph of the corresponding quadratic function • solve quadratic equations by factorisation, completing the square and using the quadratic formula, including those in which the coefficient of the quadratic term is greater than 1 • know and understand that the intersection points of the graphs of a linear and quadratic function are the approximate solutions to the corresponding simultaneous equations • solve exactly, by elimination of an unknown, two simultaneous equations in two unknowns, where one is linear in each unknown and the other is linear in one unknown and quadratic in the other or of the form x2 y2 r2 . § Objectives in colour lay the groundwork for Functional Skills at level 2. 8 | Exploring mathematics | Tier 6 (brown) Algebra 4: Functions and graphs (9 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • know simple properties of quadratic functions • model contexts or problems through precise use of symbols and it • find the next term and the nth term of quadratic sequences and functions Sequences, functions and graphs • plot graphs of simple quadratic and cubic representations • identify the situation or problem and the mathematical methods needed to tackle it (148–153, 170–177) functions, e.g. y = x , • show insight into mathematical connections in the context or problem Solving problems y = 3x2 + 4, y = x,, on paper and using ICT • draw accurate graphs on paper and on screen (6–13) 2 • sketch and interpret the graphs of quadratic, functions, and graphs that model real situations • find the approximate solutions of equations from their graphs •• transform 2D shapes, identifying properties that are preserved under particular transformations. • manipulate algebraic expressions and equations • follow through a sustained chain of reasoning • interpret and communicate solutions to problems in familiar and unfamiliar contexts • recognise limitations in the accuracy of results and conclusions and to: • plot graphs of more complex quadratic and cubic functions estimate values at specific points, including maxima and minima • identify and sketch graphs of linear and simple quadratic and cubic functions understand the effect on the graph of addition of (or multiplication by) a constant • construct the graphs of simple loci, including the circle x 2 y2 r 2 find graphically the intersection points of a given straight line with this circle and know this represents the solution to the corresponding two simultaneous equations • plot and recognise the characteristic shapes of graphs of simple cubic 1 functions (e.g. y x3 ), reciprocal functions (e.g. y , x0 ), x exponential functions ( y kx for integer values of values of x and simple positive k ) and trigonometric functions, on paper and using ICT • apply to the graph y f( x) the transformations y f( x ) a , y f(ax ) , y f( x a) and y af( x ) for linear, quadratic, sine and cosine functions § Objectives in colour lay the groundwork for Functional Skills at level 2. 9 | Exploring mathematics | Tier 6 (brown) Geometry and measures 1: Measures and mensuration (6 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • convert between units of area and between units • choose and combine representations from a range of perspectives Geometrical reasoning: lines, angles • know and use formulae for the circumference and and shapes (184–189, 198–201) Mensuration (238–241) Solving problems (30–31) of volume area of a circle • calculate the surface area and volume of cubes, cuboids, right prisms and cylinders • know and use the formulae for length of arcs and area of sectors of circles • recognise that measurements may be inaccurate by up to one half of the unit in either direction • appreciate the continuous nature of scales used to make measurements. • identify the situation or problem and the mathematical methods needed to tackle it • show insight into mathematical connections in the context or problem • make accurate mathematical diagrams and constructions • use accurate notation • calculate accurately, using mental methods or calculating devices as appropriate • use appropriate checking procedures, evaluating their effectiveness at each stage • follow through a sustained chain of reasoning • consider the assumptions in the model and recognise limitations in the accuracy of results and conclusions • examine critically strategies adopted and arguments presented and to: • recognise and use 2D representations of 3D objects • understand and use the formulae for the length of a circular arc and area and perimeter of a sector • calculate and solve problems involving the surface area of cylinders and volumes of cones, pyramids and spheres • solve problems involving more complex shapes and solids, including segments of circles and frustums of cones. § Objectives in colour lay the groundwork for Functional Skills at level 2. 10 | Exploring mathematics | Tier 6 (brown) Geometry and measures 2: Trigonometry 1 (3 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • recognise that if two 2D shapes are similar, • choose and combine representations from a range of perspectives corresponding angles are equal and corresponding sides are in the same ratio Measures and mensuration (242–247) • use sine, cosine and tangent in right-angled triangles to solve simple problems in two dimensions • use the trigonometric function keys of a calculator • use Pythagoras’ theorem to calculate lengths in right-angled triangles. • show insight into mathematical connections in the context or problem • make accurate mathematical diagrams and constructions • use accurate notation • calculate accurately, using mental methods or calculating devices as appropriate • use appropriate checking procedures, evaluating their effectiveness at each stage • follow through a sustained chain of reasoning • consider the assumptions in the model and recognise limitations in the accuracy of results and conclusions • examine critically strategies adopted and arguments presented and to: • understand and use Pythagoras’ theorem to solve 2D and 3D problems • use trigonometric relationships in right-angled triangles to solve 2D problems. § Objectives in colour lay the groundwork for Functional Skills at level 2. 11 | Exploring mathematics | Tier 6 (brown) SUPPORT Geometry and measures 1: Geometrical reasoning (7 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • solve problems using properties of angles, of • choose and combine representations from a range of perspectives parallel and intersecting lines, and of triangles and other polygons Geometrical reasoning: lines, angles and shapes (178–197) Construction and loci (220–227) Solving problems (14–17) CORE • apply conditions SSS, SAS, ASA or RHS to establish the congruence of triangles • understand that the tangent at any point on a circle is perpendicular to the radius at that point • prove and use the facts that: – the perpendicular from the centre to the chord bisects the chord – tangents to a circle from an external point are equal in length • recognise that if two 2D shapes are similar, corresponding angles are equal and corresponding sides are in the same ratio • understand and apply Pythagoras’ theorem. • show insight into mathematical connections in the context or problem • make accurate mathematical diagrams and constructions on paper and on screen • follow through a sustained chain of reasoning, including proof • use mathematical language and symbols effectively in presenting convincing arguments or conclusions • review and refine arguments, conclusions and approaches • interpret and communicate solutions to problems in familiar and unfamiliar contexts and to: • prove and use the facts that: – the angle subtended by a chord at the centre of a circle is twice the angle subtended at the circumference – the angle subtended at the circumference by a diameter is a right angle – angles in the same segment are equal – opposite angles of a cyclic quadrilateral sum to 180° • prove and use the alternate segment theorem. • prove the congruence of triangles, and verify standard ruler and compass constructions using formal arguments. § Objectives in colour lay the groundwork for Functional Skills at level 2. 12 | Exploring mathematics | Tier 6 (brown) Geometry and measures 4: Vectors (6 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • use ratio in a range of contexts • choose and combine representations from a range of perspectives • apply Pythagoras’ Theorem • select and apply a range of mathematics and mathematical techniques to • identify similar triangles Transformations (202–217) Coordinates (218–219) Ratio and proportion (78–81) • find points that divide a line in a given ratio, using properties of similar triangles • given coordinates of points A and B, calculate the length of AB • transform 2D shapes, identifying properties that are preserved under particular transformations. find solutions • show insight into mathematical connections in the context or problem • make accurate mathematical diagrams and constructions • use accurate notation • follow through a sustained chain of reasoning • examine critically strategies adopted and arguments presented • extend generalisations and to: • recognise combinations of transformations in patterns • understand and use vector notation to describe transformation of 2D shapes by combinations of translations • calculate and represent graphically the sum of two vectors, the difference of two vectors and a scalar multiple of a vector • calculate the resultant of two vectors • understand and use the commutative and associative properties of vector addition • solve simple geometrical problems in 2D using vectors. § Objectives in colour lay the groundwork for Functional Skills at level 2. 13 | Exploring mathematics | Tier 6 (brown) Geometry and measures 5: Trigonometry 2 (7 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • use sine, cosine and tangent in right-angled • choose and combine representations from a range of perspectives triangles to solve problems in two dimensions • understand and apply Pythagoras' theorem to Measures and mensuration (242–7) solve problems in two dimensions • solve problems using properties of angles, of parallel and intersecting lines, and of triangles and other polygons. • show insight into mathematical connections in the context or problem • make accurate mathematical diagrams and constructions • use accurate notation • calculate accurately, using mental methods or calculating devices as appropriate • use appropriate checking procedures, evaluating their effectiveness at each stage • follow through a sustained chain of reasoning • consider the assumptions in the model and recognise limitations in the accuracy of results and conclusions • examine critically strategies adopted and arguments presented and to: • use trigonometric relationships in right-angled triangles to solve 2D and 3D problems, including finding the angles between a line and a plane • calculate the area of a triangle using the formula 1 2 ab sin C • draw, sketch and describe the graphs of trigonometric functions for angles of any size, including simple transformations of the functions • use the sine and cosine rules to solve 2D and 3D problems. § Objectives in colour lay the groundwork for Functional Skills at level 2. 14 | Exploring mathematics | Tier 6 (brown) SUPPORT Statistics 1: Enquiry 1 (6 hours) CORE Before they start, pupils should be able to: In this unit, pupils learn to: • identify possible sources of bias and plan how to • explore practical problems in familiar and unfamiliar contexts minimise the effect • construct and interpret: Statistics – frequency polygons (248–275) – scatter diagrams and lines of best fit • determine the modal class and estimate the mean, median and range of sets of grouped data • use measures of average and range to compare distributions and make inferences. • identify the problem and the mathematical methods needed to tackle it • select and apply a range of mathematics and mathematical techniques to find solutions • choose and combine representations from a range of perspectives • follow through a sustained chain of reasoning • draw conclusions and provide mathematical justifications • recognise the limitations of any assumptions and the effects that varying the assumptions could have on the conclusions drawn • consider the efficiency of alternative lines of enquiry or procedures • interpret and communicate solutions and to: • consider possible difficulties with planned approaches, practical problems such as non-response or missing data • select and justify a sampling scheme and a method to investigate a population, including random and stratified sampling • use a range of statistical methods to explore and summarise data, including calculating an appropriate moving average for a time series • select, construct and modify, on paper and using ICT, suitable graphical representations, including histograms for grouped continuous data with equal class intervals • compare two or more distributions and make inferences, using the shape of the distributions and measures of average and spread, including median and quartiles • recognise the limitations of any assumptions and the effects that varying the assumptions could have on the conclusions drawn • identify what extra information may be required to pursue a further line of enquiry. § Objectives in colour lay the groundwork for Functional Skills at level 2. 15 | Exploring mathematics | Tier 6 (brown) Statistics 2: Probability 1 (6 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • recognise that the sum of probabilities of all • explore practical problems in familiar and unfamiliar contexts mutually exclusive outcomes is 1 and use this when solving problems Probability • compare experimental and theoretical (276–283) probabilities in a range of contexts Fractions (66–69) • use relative frequency as an estimate of probability to compare outcomes of experiments • select and apply a range of mathematics and mathematical techniques to find solutions • choose and combine representations from a range of perspectives • follow through a sustained chain of reasoning • examine and extend generalisations • consider the assumptions in the model and recognise limitations in the accuracy of results and conclusions • interpret and communicate solutions • examine critically strategies adopted and arguments presented and to: • use tree diagrams to represent outcomes of compound events, recognising when events are independent and distinguishing between contexts involving selection, both with and without replacement • know when to add or multiply two probabilities (if A and B are mutually exclusive, then the probability of A or B occurring is P(A) + P(B), whereas if A and B are independent events, the probability of A and B occurring is P(A) × P(B)), and use this knowledge in solving problems • understand that if an experiment is repeated, the outcome may – and usually will – be different, and that increasing the sample size generally leads to better estimates of probability and population parameters. § Objectives in colour lay the groundwork for Functional Skills at level 2. 16 | Exploring mathematics | Tier 6 (brown) Statistics 3: Enquiry 2 (8 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • identify sources of bias and plan how to minimise • explore practical problems in familiar and unfamiliar contexts the effect • construct and interpret: Statistics – frequency polygons (250–251, 254–275) – scatter diagrams and lines of best fit Solving problems (28–29) • determine the modal class and estimate the mean, median and range of sets of grouped data. • identify the problem and the mathematical methods needed to tackle it • select and apply a range of mathematics and mathematical techniques to find solutions • choose and combine representations from a range of perspectives • follow through a sustained chain of reasoning • draw conclusions and provide mathematical justifications • recognise the limitations of any assumptions and the effects that varying the assumptions could have on the conclusions drawn • consider the efficiency of alternative lines of enquiry or procedures • interpret and communicate solutions and to: • understand how methods of sampling and sample sizes affect the reliability of conclusions • use a moving average to identify seasonality and trends in time series data, using them to make predictions • construct, use, interpret and compare histograms, including those with unequal class intervals, , and cumulative frequency tables, diagrams and box plots • compare two or more distributions and make inferences, using the shape of the distributions and summary statistics, including median and quartiles. § Objectives in colour lay the groundwork for Functional Skills at level 2. 17 | Exploring mathematics | Tier 6 (brown) Statistics 4: Probability 2 (5 hours) Before they start, pupils should be able to: In this unit, pupils learn to: • identify all the outcomes of a combination of two • explore practical problems in familiar and unfamiliar contexts experiments • select and apply a range of mathematics and mathematical techniques to • use relative frequency as an estimate of Probability (276–283) probability to compare outcomes of experiments • use tree diagrams to represent outcomes of compound events, recognising when events are independent • calculate the probability of a compound event • recognise when and how to work with probabilities associated with independent mutually exclusive find solutions • choose and combine representations from a range of perspectives • follow through a sustained chain of reasoning • examine and extend generalisations • consider the assumptions in the model and recognise limitations in the accuracy of results and conclusions • interpret and communicate solutions • examine critically strategies adopted and arguments presented events. and to: • use tree diagrams to represent outcomes of compound events, recognising when events are independent and distinguishing between contexts involving selection, both with and without replacement • know when to add or multiply two probabilities and use this knowledge in solving problems. § Objectives in colour lay the groundwork for Functional Skills at level 2. Revision 1 and 2 - process objectives Previous learning Objectives based on NC levels 6 and 7 (mainly level 7) Pupils should already be able to apply and use In this unit, pupils consolidate their ability to: many of the skills shown on the right. This unit • solve routine and non-routine problems in a range of familiar and unfamiliar contexts offers is an opportunity to consolidate and refine these skills. • choose and combine representations from a range of perspectives • show insight into mathematical connections in the context or problem • select and apply a range of mathematics and the mathematical techniques to find solutions • consider the efficiency of alternative lines of enquiry or procedures • follow through a sustained chain of reasoning • use appropriate checking procedures, evaluating their effectiveness at each stage • draw conclusions, providing mathematical justifications • recognise limitations in the accuracy of results and conclusions • interpret and communicate solutions and to: Number as in unit 18 | Exploring mathematics | Tier 6 (brown) Algebra as in unit Geometry and measures as in unit Statistics as in unit § Objectives in colour lay the groundwork for Functional Skills at level 2. 19 | Exploring mathematics | Tier 6 (brown)