year 10 set 1 and 2 higher
Scheme of work
Scheme of work
Polygons, angles and parallel lines
● Use the angle sums of irregular polygons;
● Calculate and use the sums of the interior angles of polygons, use the sum of angles in a triangle to deduce and use the angle sum in any polygon and to derive the properties of regular polygons;
● Use the sum of the exterior angles of any polygon is 360°;
● Use the sum of the interior angles of an n-sided polygon;
● Use the sum of the interior angle and the exterior angle is 180°;
● Find the size of each interior angle, or the size of each exterior angle, or the number of sides of a regular polygon, and use the sum of angles of irregular polygons;
● Calculate the angles of regular polygons and use these to solve problems;
● Use the side/angle properties of compound shapes made up of triangles, lines and quadrilaterals, including solving angle and symmetry problems for shapes in the first quadrant, more complex problems and using algebra;
● Use angle facts to demonstrate how shapes would ‘fit together’, and work out interior angles of shapes in a pattern.
· Factorise quadratic expressions in the form ax2 + bx + c;
· Solve quadratic equations by factorisation and completing the square;
· Solve quadratic equations that need rearranging;
· Set up and solve quadratic equations;
Solve quadratic equations by using the quadratic formula
· Recall and use the formula for volume of pyramid;
· Find the surface area of a pyramid;
· Use the formulae for volume and surface area of spheres and cones;
· Solve problems involving more complex shapes and solids, including segments of circles and frustums of cones;
· Find the surface area and volumes of compound solids constructed from cubes, cuboids, cones, pyramids, spheres, hemispheres, cylinders;
· Give answers in terms of π;
Form equations involving more complex shapes and solve these equations
Graphs: the basics and real-life graphs
Calculate the length of a line segment given the coordinates of the end points;
● Find the coordinates of points identified by geometrical information.
● Find the equation of the line through two given points.
.
· Recognise a linear, quadratic, cubic, reciprocal and circle graph from its shape;
· Generate points and plot graphs of simple quadratic functions, then more general quadratic functions;
· Find approximate solutions of a quadratic equation from the graph of the corresponding quadratic function;
· Interpret graphs of quadratic functions from real-life problems;
· Draw graphs of simple cubic functions using tables of values;
Interpret graphs of simple cubic functions, including finding solutions to cubic equations
· Understand and use SSS, SAS, ASA and RHS conditions to prove the congruence of triangles using formal arguments, and to verify standard ruler and pair of compasses constructions;
· Solve angle problems by first proving congruence;
· Understand similarity of triangles and of other plane shapes, and use this to make geometric inferences;
· Prove that two shapes are similar by showing that all corresponding angles are equal in size and/or lengths of sides are in the same ratio/one is an enlargement of the other, giving the scale factor;
· Use formal geometric proof for the similarity of two given triangles;
· Understand the effect of enlargement on angles, perimeter, area and volume of shapes and solids;
· Identify the scale factor of an enlargement of a similar shape as the ratio of the lengths of two corresponding sides, using integer or fraction scale factors;
· Write the lengths, areas and volumes of two shapes as ratios in their simplest form;
· Find missing lengths, areas and volumes in similar 3D solids;
· Know the relationships between linear, area and volume scale factors of mathematically similar shapes and solids;
· Use the relationship between enlargement and areas and volumes of simple shapes and solids;
· Solve problems involving frustums of cones where you have to find missing lengths first using similar triangles.
Algebra: the basics
Factorise quadratic expressions of the form ax2 + bx + c;
Factorise quadratic expressions using the difference of two squares.
· Write probabilities using fractions, percentages or decimals;
· Understand and use experimental and theoretical measures of probability, including relative frequency to include outcomes using dice, spinners, coins, etc;
· Estimate the number of times an event will occur, given the probability and the number of trials;
· Find the probability of successive events, such as several throws of a single dice;
· List all outcomes for single events, and combined events, systematically;
· Draw sample space diagrams and use them for adding simple probabilities;
· Know that the sum of the probabilities of all outcomes is 1;
· Use 1 – p as the probability of an event not occurring where p is the probability of the event occurring;
· Work out probabilities from Venn diagrams to represent real-life situations and also ‘abstract’ sets of numbers/values;
· Use union and intersection notation;
· Find a missing probability from a list or two-way table, including algebraic terms;
· Understand conditional probabilities and decide if two events are independent;
· Draw a probability tree diagram based on given information, and use this to find probability and expected number of outcome;
· Understand selection with or without replacement;
· Calculate the probability of independent and dependent combined events;
· Use a two-way table to calculate conditional probability;
· Use a tree diagram to calculate conditional probability;
· Use a Venn diagram to calculate conditional probability;
· Compare experimental data and theoretical probabilities;
· Compare relative frequencies from samples of different sizes.
· linear / quadratic;
· linear / x2 + y2 = r2;
· Set up and solve a pair of simultaneous equations in two variables for each of the above scenarios, including to represent a situation;
Interpret the solution in the context of the problem
· Set up simple equations from word problems and derive simple formulae;
· Understand the ≠ symbol (not equal), e.g. 6x + 4 ≠ 3(x + 2), and introduce identity ≡ sign;
· Solve linear equations, with integer coefficients, in which the unknown appears on either side or on both sides of the equation;
· Solve linear equations which contain brackets, including those that have negative signs occurring anywhere in the equation, and those with a negative solution;
· Solve linear equations in one unknown, with integer or fractional coefficients;
· Set up and solve linear equations to solve to solve a problem;
· Derive a formula and set up simple equations from word problems, then solve these equations, interpreting the solution in the context of the problem;
· By writing the denominator in terms of its prime factors, decide whether fractions can be converted to recurring or terminating decimals;
· Convert a fraction to a recurring decimal;
· Convert a recurring decimal to a fraction;
· Find the reciprocal of an integer, decimal or fraction.
· Know and apply Area = ab sin C to calculate the area, sides or angles of any triangle.
· Know the sine and cosine rules, and use to solve 2D problems (including involving bearings).
· Use the sine and cosine rules to solve 3D problems.
· Understand the language of planes, and recognise the diagonals of a cuboid.
· Solve geometrical problems on coordinate axes.
· Understand, recall and use trigonometric relationships and Pythagoras’ Theorem in right-angled triangles, and use these to solve problems in 3D configurations.
· Calculate the length of a diagonal of a cuboid.
• Find the angle between a line and a plane.
Sequences
Continue a quadratic sequence and use the nth term to generate terms;
· Find the nth term of quadratic sequences;
· Distinguish between arithmetic and geometric sequences;
· Use finite/infinite and ascending/descending to describe sequences;
· Recognise and use simple geometric progressions (rn where n is an integer, and r is a rational number > 0 or a surd);
· Continue geometric progression and find term to term rule, including negative, fraction and decimal terms;
· Solve problems involving sequences from real life situations.
· Calculate the upper and lowers bounds of numbers given to varying degrees of accuracy;
· Calculate the upper and lower bounds of an expression involving the four operations;
· Find the upper and lower bounds in real-life situations using measurements given to appropriate degrees of accuracy;
· Find the upper and lower bounds of calculations involving perimeters, areas and volumes of 2D and 3D shapes;
· Calculate the upper and lower bounds of calculations, particularly when working with measurements;
· Use inequality notation to specify an error bound.
· Recognise and interpret graphs showing direct and indirect proportion;
· Identify direct proportion from a table of values, by comparing ratios of values, for
x squared and x cubed relationships;
· Write statements of proportionality for quantities proportional to the square, cube or other power of another quantity;
· Set up and use equations to solve word and other problems involving direct proportion;
· Use y = kx to solve direct proportion problems, including questions where students find k, and then use k to find another value;
· Solve problems involving inverse proportion using graphs by plotting and reading values from graphs;
· Solve problems involving inverse proportionality;
· Set up and use equations to solve word and other problems involving direct proportion or inverse proportion.
Indices, roots, reciprocals and hierarchy of operations
· Use index notation for integer powers of 10, including negative powers;
· Recognise powers of 2, 3, 4, 5;
· Use the square, cube and power keys on a calculator and estimate powers and roots of any given positive number, by considering the values it must lie between, e.g. the square root of 42 must be between 6 and 7;
· Find the value of calculations using indices including positive, fractional and negative indices;
· Recall that n0 = 1 and n–1 = for positive integers n as well as, = √n and = 3√n for any positive number n;
· Understand that the inverse operation of raising a positive number to a power n is raising the result of this operation to the power ;
· Use index laws to simplify and calculate the value of numerical expressions involving multiplication and division of integer powers, fractional and negative powers, and powers of a power;
· Solve problems using index laws;
· Use brackets and the hierarchy of operations up to and including with powers and roots inside the brackets, or raising brackets to powers or taking roots of brackets;
· Use an extended range of calculator functions, including +, –, ×, ÷, x², √x, memory, x y, , brackets;
· Use calculators for all calculations: positive and negative numbers, brackets, powers and roots, four operations.
· Draw graphs of the reciprocal function with x ≠ 0 using tables of values;
· Draw circles, centre the origin, equation x2 + y2 = r2.
· Recall the definition of a circle and identify (name) and draw parts of a circle, including sector, tangent, chord, segment;
· Prove and use the facts that:
· the angle subtended by an arc at the centre of a circle is twice the angle subtended at any point on the circumference;
· the angle in a semicircle is a right angle;
· the perpendicular from the centre of a circle to a chord bisects the chord;
· angles in the same segment are equal;
· alternate segment theorem;
· opposite angles of a cyclic quadrilateral sum to 180°;
· Understand and use the fact that the tangent at any point on a circle is perpendicular to the radius at that point;
· Find and give reasons for missing angles on diagrams using:
· circle theorems;
· isosceles triangles (radius properties) in circles;
· the fact that the angle between a tangent and radius is 90°;
· the fact that tangents from an external point are equal in length.
· Factorise quadratic expressions in the form ax2 + bx + c;
· Solve quadratic equations by factorisation and completing the square;
· Solve quadratic equations that need rearranging;
· Set up and solve quadratic equations;
Solve quadratic equations by using the quadratic formula
· Recall the definition of a circle and name and draw parts of a circle;
· Recall and use formulae for the circumference of a circle and the area enclosed by a circle (using circumference = 2πr = πd and area of a circle = πr2) using a variety of metric measures;
· Use π ≈ 3.142 or use the π button on a calculator;
· Calculate perimeters and areas of composite shapes made from circles and parts of circles (including semicircles, quarter-circles, combinations of these and also incorporating other polygons);
· Calculate arc lengths, angles and areas of sectors of circles;
· Find radius or diameter, given area or circumference of circles in a variety of metric measures;
· Give answers in terms of π;
Form equations involving more complex shapes and solve these equations
· Find the original amount given the final amount after a percentage increase or decrease (reverse percentages), including VAT;
· Use calculators for reverse percentage calculations by doing an appropriate division;
· Use percentages in real-life situations, including percentages greater than 100%;
· Describe percentage increase/decrease with fractions, e.g. 150% increase means times as big;
· Understand that fractions are more accurate in calculations than rounded percentage or decimal equivalents, and choose fractions, decimals or percentages appropriately for calculations.
By the end of the sub-unit, students should be able to:
· Convert large and small numbers into standard form and vice versa;
· Add and subtract numbers in standard form;
· Multiply and divide numbers in standard form;
· Interpret a calculator display using standard form and know how to enter numbers in standard form;
· Understand surd notation, e.g. calculator gives answer to sq rt 8 as 4 rt 2;
· Simplify surd expressions involving squares (e.g. √12 = √(4 × 3) = √4 × √3 = 2√3).
· Show inequalities on number lines;
· Write down whole number values that satisfy an inequality;
· Solve simple linear inequalities in one variable, and represent the solution set on a number line;
· Solve two linear inequalities in x, find the solution sets and compare them to see which value of x satisfies both solve linear inequalities in two variables algebraically;
· Use the correct notation to show inclusive and exclusive inequalities.
· Find the surface area of prisms using the formulae for triangles and rectangles, and other (simple) shapes with and without a diagram;
· Draw sketches of 3D solids;
· Identify planes of symmetry of 3D solids, and sketch planes of symmetry;
· Recall and use the formula for the volume of a cuboid or prism made from composite 3D solids using a variety of metric measures;
· Convert between metric volume measures;
· Convert between metric measures of volume and capacity, e.g. 1 ml = 1 cm3;
· Use volume to solve problems;
· Estimating surface area, perimeter and volume by rounding measurements to 1 significant figure to check reasonableness of answers.
· Use π ≈ 3.142 or use the π button on a calculator;
Find the volume and surface area of a cylinder
· Write a ratio as a linear function;
· Identify direct proportion from a table of values, by comparing ratios of values;
· Use a ratio to compare a scale model to real-life object;
· Use a ratio to convert between measures and currencies, e.g. £1.00 = €1.36;
· Scale up recipes;
· Convert between currencies.
· Know the appropriate uses of histograms;
· Construct and interpret histograms from class intervals with unequal width;
· Use and understand frequency density;
· From histograms:
· complete a grouped frequency table;
· understand and define frequency density;
· Estimate the mean from a histogram;
· Estimate the median from a histogram with unequal class widths or any other information from a histogram, such as the number of people in a given interval.