Year 10 set 4 and 5
Scheme of work
Scheme of work
Properties of shapes, parallel lines and angle facts
· Recall the properties and definitions of special types of quadrilaterals, including symmetry properties;
· List the properties of each special type of quadrilateral, or identify (name) a given shape;
· Draw sketches of shapes;
· Name all quadrilaterals that have a specific property;
· Identify quadrilaterals from everyday usage;
· Given some information about a shape on coordinate axes, complete the shape;
· Classify quadrilaterals by their geometric properties;
· Understand and use the angle properties of quadrilaterals;
· Use the fact that angle sum of a quadrilateral is 360°;
· Use geometrical language appropriately and give reasons for angle calculations;
· Recall and use properties of angles at a point, angles at a point on a straight line, right angles, and vertically opposite angles;
· Distinguish between scalene, equilateral, isosceles and right-angled triangles;
· Derive and use the sum of angles in a triangle;
· Find a missing angle in a triangle, using the angle sum of a triangle is 180°;
· Understand and use the angle properties of triangles, use the symmetry property of isosceles triangle to show that base angles are equal;
· Use the side/angle properties of isosceles and equilateral triangles;
· Show step-by-step deduction when solving problems;
· Understand and use the angle properties of intersecting lines;
· Understand a proof that the exterior angle of a triangle is equal to the sum of the interior angles at the other two vertices;
· 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;
· Rearrange simple equations;
· Substitute into a formula, and solve the resulting equation;
· Find an approximate solution to a linear equation using a graph;
· Solve angle or perimeter problems using algebra.
· Write an equation to solve a word problem.
· Calculate the mean, mode, median and range for discrete data;
· Can interpret and find a range of averages as follows:
· median, mean and range from a (discrete) frequency table;
· range, modal class, interval containing the median, and estimate of the mean from a grouped data frequency table;
· mode and range from a bar chart;
· median, mode and range from stem and leaf diagrams;
· mean from a bar chart;
· Understand that the expression 'estimate' will be used where appropriate, when finding the mean of grouped data using mid-interval values;
· Compare the mean, median, mode and range (as appropriate) of two distributions using bar charts, dual bar charts, pictograms and back-to-back stem and leaf;
· Recognise the advantages and disadvantages between measures of average.
Real-life graphs
· Use input/output diagrams;
· Use axes and coordinates to specify points in all four quadrants in 2D;
· Identify points with given coordinates and coordinates of a given point in all four quadrants;
· Find the coordinates of points identified by geometrical information in 2D (all four quadrants);
· Find the coordinates of the midpoint of a line segment;
· Draw, label and scale axes;
· Read values from straight-line graphs for real-life situations;
· Derive a simple formula, including those with squares, cubes and roots;
· Substitute numbers into a word formula;
· Substitute numbers into a formula.
· Find missing angles using properties of corresponding and alternate angles;
· Understand and use the angle properties of parallel lines.
Expressions and substitution into formulae
· Write expressions to solve problems representing a situation;
· Substitute numbers in simple algebraic expressions;
· Substitute numbers into expressions involving brackets and powers;
· Substitute positive and negative numbers into expressions;
· Add and subtract mixed number fractions;
· Multiply mixed number fractions;
· Divide mixed numbers by whole numbers and vice versa;
· Find the reciprocal of an integer, decimal or fraction;
· Understand ‘reciprocal’ as multiplicative inverse, knowing that any non-zero number multiplied by its reciprocal is 1 (and that zero has no reciprocal because division by zero is not defined).
· Show inequalities on number lines;
· Write down whole number values that satisfy an inequality;
· Solve an inequality such as –3 < 2x + 1 <7 and show the solution set on a number line;
· Solve two inequalities in x, find the solution sets and compare them to see which value of x satisfies both;
· Use the correct notation to show inclusive and exclusive inequalities;
· Construct inequalities to represent a set shown on a number line;
· Solve simple linear inequalities in one variable, and represent the solution set on a number line;
· Round answers to a given degree of accuracy.
· Use the nth term of an arithmetic sequence to decide if a given number is a term in the sequence, or find the first term over a certain number;
· Use the nth term of an arithmetic sequence to find the first term greater/less than a certain number;
· Continue a geometric progression and find the term-to-term rule, including negatives, fraction and decimal terms;
· Continue a quadratic sequence and use the nth term to generate terms;
Distinguish between arithmetic and geometric sequences
· Find the area of a trapezium and recall the formula;
· Find the area of a parallelogram;
· Calculate areas and perimeters of compound shapes made from triangles and rectangles;
· Estimate surface areas by rounding measurements to 1 significant figure;
· Find the surface area of a prism;
· Find surface area using rectangles and triangles;
· Convert between metric area measures.
Scatter graphs
· Draw scatter graphs;
· Interpret points on a scatter graph;
· Identify outliers and ignore them on scatter graphs;
· Draw the line of best fit on a scatter diagram by eye, and understand what it represents;
· Use the line of best fit make predictions; interpolate and extrapolate apparent trends whilst knowing the dangers of so doing;
· Distinguish between positive, negative and no correlation using lines of best fit;
· Use a line of best fit to predict values of a variable given values of the other variable;
· Interpret scatter graphs in terms of the relationship between two variables;
· Interpret correlation in terms of the problem;
· Understand that correlation does not imply causality;
· State how reliable their predictions are, i.e. not reliable if extrapolated.
• Generate points and plot graphs of simple quadratic functions, then more general quadratic functions;
• Identify the line of symmetry of a quadratic graph;
• Find approximate solutions to quadratic equations using a graph;
• Interpret graphs of quadratic functions from real-life problems;
• Identify and interpret roots, intercepts and turning points of quadratic graphs.
· Recognise when values are in direct proportion by reference to the graph form;
· Understand inverse proportion: as x increases, y decreases (inverse graphs done in later unit);
· Recognise when values are in direct proportion by reference to the graph form;
· Understand direct proportion ---> relationship y = kx.
Ratio
· Understand and express the division of a quantity into a of number parts as a ratio;
· Write ratios in their simplest form;
· Write/interpret a ratio to describe a situation;
· Share a quantity in a given ratio including three-part ratios;
· Solve a ratio problem in context:
· use a ratio to find one quantity when the other is known;
· use a ratio to compare a scale model to a real-life object;
· use a ratio to convert between measures and currencies;
· problems involving mixing, e.g. paint colours, cement and drawn conclusions;
· Compare ratios;
· Write ratios in form 1 : m or m : 1;
· Write a ratio as a fraction;
· Use index laws to simplify and calculate the value of numerical expressions involving multiplication and division of integer powers, fractions and powers of a power;
· Use numbers raised to the power zero, including the zero power of 10;
· Understand clockwise and anticlockwise;
· Draw circles and arcs to a given radius or given the diameter;
· Measure and draw lines, to the nearest mm;
· Measure and draw angles, to the nearest degree;
· Know and use compass directions;
· Draw sketches of 3D solids;
· Know the terms face, edge and vertex;
· Identify and sketch planes of symmetry of 3D solids;
· Use isometric grids to draw 2D representations of 3D solids;
· Make accurate drawings of triangles and other 2D shapes using a ruler and a protractor;
· Construct diagrams of everyday 2D situations involving rectangles, triangles, perpendicular and parallel lines;
· Understand and draw front and side elevations and plans of shapes made from simple solids;
· Given the front and side elevations and the plan of a solid, draw a sketch of the 3D solid.
· Understand and use proportion as equality of ratios;
· Solve word problems involving direct and indirect proportion;
· Work out which product is the better buy;
· Scale up recipes;
· Convert between currencies;
· Find amounts for 3 people when amount for 1 given;
· Solve proportion problems using the unitary method;
· Identify congruent shapes by eye;
· Understand clockwise and anticlockwise;
· Understand that rotations are specified by a centre, an angle and a direction of rotation;
· Find the centre of rotation, angle and direction of rotation and describe rotations;
· Describe a rotation fully using the angle, direction of turn, and centre;
· Rotate a shape about the origin or any other point on a coordinate grid;
· Draw the position of a shape after rotation about a centre (not on a coordinate grid);
· Identify correct rotations from a choice of diagrams;
· Understand that translations are specified by a distance and direction using a vector;
· Translate a given shape by a vector;
· Describe and transform 2D shapes using single translations on a coordinate grid;
· Use column vectors to describe translations;
· Understand that distances and angles are preserved under rotations and translations, so that any figure is congruent under either of these transformations.
· 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.
· Understand that reflections are specified by a mirror line;
· Identify correct reflections from a choice of diagrams;
· Understand that reflections are specified by a mirror line;
· Identify the equation of a line of symmetry;
· Transform 2D shapes using single reflections (including those not on coordinate grids) with vertical, horizontal and diagonal mirror lines;
· Describe reflections on a coordinate grid;
· Scale a shape on a grid (without a centre specified);
· Understand that an enlargement is specified by a centre and a scale factor;
· Enlarge a given shape using (0, 0) as the centre of enlargement, and enlarge shapes with a centre other than (0, 0);
· Find the centre of enlargement by drawing;
· Describe and transform 2D shapes using enlargements by:
· a positive integer scale factor;
· a fractional scale factor;
· Identify the scale factor of an enlargement of a shape as the ratio of the lengths of two corresponding sides, simple integer scale factors, or simple fractions;
· Understand that distances and angles are preserved under reflections, so that any figure is congruent under this transformation;
· Understand that similar shapes are enlargements of each other and angles are preserved – define similar in this unit;
· Describe and transform 2D shapes using combined rotations, reflections, translations, or enlargements.
• construct the perpendicular bisector of a given line;
• construct the perpendicular from a point to a line;
• construct the bisector of a given angle;
• construct angles of 90°, 45°;
· Select an expression/equation/formula/identity from a list;
· Write expressions and set up simple equations;
· Use function machines;
· Solve simple equations;
· Solve linear equations, with integer coefficients, in which the unknown appears on either side or on both sides of the equation;
· Multiply a single number term over a bracket;
· Write and simplify expressions using squares and cubes;
· Simplify expressions involving brackets, i.e. expand the brackets, then add/subtract;
· Argue mathematically to show algebraic expressions are equivalent;
· Recognise factors of algebraic terms involving single brackets;
· Factorise algebraic expressions by taking out common factors.
· Calculate perimeters and areas of composite shapes made from circles and parts of circles;
· Calculate arc lengths, angles and areas of sectors of circles;
· Find the surface area of a cylinder;
· Find the volume of a cylinder;
· Find the surface area and volume of spheres, pyramids, cones and composite solids;
· Round answers to a given degree of accuracy.
· Add and subtract mixed number fractions;
· Multiply mixed number fractions;
· Divide mixed numbers by whole numbers and vice versa;
· Find the reciprocal of an integer, decimal or fraction;
· Understand ‘reciprocal’ as multiplicative inverse, knowing that any non-zero number multiplied by its reciprocal is 1 (and that zero has no reciprocal because division by zero is not defined).
· Recall the definition of a circle;
· Identify, name and draw parts of a circle including tangent, chord and segment;
· Recall and use formulae for the circumference of a circle and the area enclosed by a circle circumference of a circle = 2πr = πd, area of a circle = πr2;
· Find circumferences and areas enclosed by circles;
· Use π ≈ 3.142 or use the π button on a calculator;
· Give an answer to a question involving the circumference or area of a circle in terms of π;
· Find radius or diameter, given area or perimeter of a circles;
· Find the perimeters and areas of semicircles and quarter-circles;
· Find the probability of an event happening using relative frequency;
· Estimate the number of times an event will occur, given the probability and the number of trials – for both experimental and theoretical probabilities;
· List all outcomes for combined events systematically;
· Use and draw sample space diagrams;
· Draw straight line graphs for real-life situations, including ready reckoner graphs, conversion graphs, fuel bills graphs, fixed charge and cost per unit;
· Draw distance–time graphs and velocity–time graphs;
· Work out time intervals for graph scales;
· Interpret distance–time graphs, and calculate: the speed of individual sections, total distance and total time;
· Interpret information presented in a range of linear and non-linear graphs;
· Interpret graphs with negative values on axes;
· Interpret gradient as the rate of change in distance–time and speed–time graphs, graphs of containers filling and emptying, and unit price graphs.