Section 3 - Level/Grade Descriptors

A - Key Stage 3 Grade Descriptors ~ Level 4 - 5 - 6 - 7 - 8

B - GCSE Grade Descriptors


To be working at Level 4, I need to……

  • Multiply & Divide whole numbers by 10 or 100
  • Solve number problems using mental and written methods involving the 4 operations
  • Know times tables up to 10 x 10
  • Add and subtract decimals to two places
  • Recognise proportions of a whole and use fractions and percentages to describe them
  • Describe simple number patterns and relationships including multiple, factor and square
  • Use simple formulae expressed in words
  • Use co-ordinates in the first quadrant
  • Make 3D models by linking faces and edges
  • Draw common 2D shapes in different orientations on a grid
  • Identify congruent shapes
  • Identify orders of rotational symmetry
  • Choose appropriate units and instruments for measurements
  • Calculate perimeters of shapes
  • Find areas of shapes by counting squares
  • Find volumes of 3D shapes by counting cubes
  • Collect discrete data and record them using a frequency table (or tally chart)
  • Understand and use the mode and median
  • Group data in equal class intervals
  • Represent collected data in frequency diagrams and interpret their meaning
  • Construct and interpret simple line diagrams
  • Understand and use simple vocabulary associated with probability such as fair, certain and likely

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To be working at Level 5, I need to……

  • Multiply and divide whole numbers and decimals by 10, 100 and 1000
  • Order, add and subtract negative numbers
  • Use all four operations with decimals to two places
  • Calculate fractional and percentage parts of quantities
  • Multiply and divide any 3 digit number by any 2 digit number
  • Apply inverse operations to check solutions
  • Check solutions by estimating using approximations
  • Construct and use simple formulae in symbolic form
  • Measure and draw angles to the nearest degree
  • Use language associated with angle
  • Identify all the symmetries of 2D shapes
  • Know rough metric equivalents of imperial units still in use
  • Convert one metric unit to another
  • Make sensible estimates of measures
  • Understand and use the mean of discrete data
  • Compare two distributions using range and one of the measures of average
  • Interpret graphs and diagrams and draw conclusions
  • Understand and use the probability scale from 0 to 1
  • Calculate probabilities of single events
  • Understand that different outcomes may result from repeating and experiment

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To be working at Level 6, I need to……

  • Approximate with decimals when solving equations such as x = 20, using trial and improvement
  • Write one number as a fraction or percentage of another
  • Understand the equivalence of fractions, decimals and percentages
  • Calculate using ratios
  • Find and describe in words the rule for the next term and the nth term of a sequence where the rule is linear
  • Solve linear equations with integer coefficients
  • Represent mappings expressed algebraically
  • Use graphical representations in four quadrants
  • Recognise and use 2D representations of 3D objects
  • Know and use the properties of quadrilaterals when classifying them
  • Know basic angle facts of polygons, and of intersecting and parallel lines
  • Calculate the circumference and area of a circle
  • Calculate areas of plane rectilinear shapes
  • Calculate the volume of a cuboid
  • Enlarge a shape by a positive whole number scale factor
  • Collect and record continuous data in a frequency table
  • Construct and interpret frequency diagrams
  • Construct pie charts
  • Draw conclusions form scatter diagrams and have a basic understanding of correlation
  • Identify all possible outcomes when dealing with a combination of two events, using diagrammatic or tabular methods
  • Know that the total probability of all mutually exclusive outcomes of an experiment is 1

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To be working at Level 7, I need to……

  • Estimate by rounding to one significant figure and multiplying or dividing mentally
  • Understand the effects of multiplying and dividing by numbers between 0 and 1
  • Understand and use proportional change
  • Find and describe in symbols the next or nth term of a sequence where the rule is quadratic
  • Use algebraic and graphical methods to solve simultaneous linear equations
  • Solve simple inequalities
  • Understand and apply Pythagoras' theorem in 2D
  • Calculate lengths, areas and volumes in plane shapes and prisms
  • Enlarge shapes by a fractional scale factor
  • Determine the locus of an object moving according to a rule
  • Appreciate the continuous nature of measurement and recognise the extent of inaccuracy when rounding
  • Understand and use compound measures such as speed
  • Specify hypotheses and test them by designing and using appropriate methods that take account of bias
  • Determine the modal class and estimate the mean, median and range of sets of grouped data
  • Select the average most appropriate to an enquiry
  • Compare distributions using measures of averages and range
  • Draw the line of best fit on scatter diagrams, by inspection
  • Understand relative frequency as an estimate of probability and use it to compare the outcomes of experiments

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To be working at Level 8, I need to……

  • Solve problems involving calculating with powers, roots and numbers expressed in standard form
  • Use fractions and percentages to solve problems involving repeated proportional change or the calculation of the original quantity given the result of a proportional change
  • Calculate one variable, given the others, in formulae such as V = rh
  • Manipulate algebraic formulae, equations and expressions by finding common factors
  • Multiply two linear expressions
  • Solve inequalities in two variables
  • Sketch and interpret graphs of linear, quadratic, cubic and reciprocal functions and graphs that model real situations
  • Understand and use mathematical similarity
  • Use Trigonometry in 2D problems
  • Distinguish between formulae for perimeter, area and volume by considering dimensions
  • Interpret and construct cumulative frequency tables and diagrams, using the upper bound of the class interval
  • Estimate the median and interquartile range to compare distributions
  • Calculate the probabilities of either independent or mutually exclusive events

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B - GCSE Grade Descriptors

grade Number Algebra
A*

Bounds in area/volume questions

Complex indices, including surds

Solve equations, one linear and one quadratic

Equation of circle and intersection points with line

Trig functions

Exponential/complex functions

Algebraic fractions

Rearrange complex equations

Graphical functions, y = f(x+a); y = f(ax)

A

Rationlising surds

Upper/lower bounds

Fractional indices

Rearrange equations/formulae, variable twice

Simple algebraic fractions, + -

Algebraic problems, explain why (n+1)(n+20) is an even number

Solve quadratics by, factorizing, formula or completing the square

Solve equations graphically

Difference of two squares

Simplify algebra involving powers

Equation of line through point and perpendicular to a given line

B

Compound Interest

Reverse %

Fractions, any form

Standard form

Negative Indices

Difference of 2 squares

Solve inequalities by algebra/graphical

Simultaneous equations by graph/algebra

Match equations to graphs

Solve quadratics by factorizing, a =1

Solve equations, involving fractions

Expand brackets and simplify

Use y=mx+c to find the gradient and equation without drawing

Solve cubic graphically (graph given)

Solve quadratic graphically.

Table and graphs, cubic and reciprocal

Cancelling down where denominator is an algebraic expression

Factorising various expressions, 6(a-b)² - 3(a-b)

C

Estimation, division by number less than 1

Compound interest, no rounding necessary

Calculator use, complex

Multiplication/division by number between 0 and 1

Fractions

Ratios

% decrease/increase

Multiplication/division by powers of 10 and decimals

Prime factors as indices

Rules of indices, numeric but not ‘0’

Trial and improvement, cubic

Simple rearrangement

Solve equations

Solve inequalities

Expand brackets and simplify

Quadratic tables and graphs

Real life graphs, water filling, travel graphs

Nth term linea

rFind length of a line given 2 points

Substitution into complex formulae

D

Estimation

Profit/loss

Simple proportion

Increase/decrease by given %

Fractions

Ratios in recipes questions

Expand x(x+4)

Factorise x² - 5x, 12x – 8

Unstructured linear graphs

Derive equations from diagrams and solve

Substituting negative numbers into algebraic expressions

Expand and simplify brackets and expressions

Solve equations, variable on each side, brackets involved

E

Simplifying ratios

Use of calculator, 1·5³; square root of 23·78

Rounding to 1 s.f.

FractionsLong multiplication/division, involving decimals

% without calculator

Ordering fractions/decimals/percentages

Indices/powers/roots, 4³, 2³ x 3², the cube of 4

Four rules of negative numbers

Calculate VAT

Linear table and graph

Simplify simple algebra

Use a formula inversely, find x if y=3 in the formula y = 2 -1

Conversion graphs

Complex number sequences

Solve equations 3y + 2 = 8

F

Long multiplication/division, 3 digit by 2 digit

Simple %/fraction of quantity

BODMAS

Rounding to d.p.

Place value

Simple squares/cubes/roots

Number factors

Convert %/fractions/decimals

Negative numbers in context

Finding terms in a linear sequence

Non-linear number sequences

Co-ordinates in 4 quadrants

Use simple formula

Solve equations 5x = 25, x-2=6

Derive simple expressions

G

Rounding to the nearest integer

Bills/timetables

Rounding to the nearest 10,100,etc

Fraction/% shaded, from a diagram

Simple number terms

Simple fractions of quantities, numerator of 1

Ordering decimals

Order/read/write whole numbers

Convert to a ratio, 1/3 of a whole is 1:2

Co-ordinates in the 1st quadrant

Reading from real life graphs

Next term in a simple linear sequence

 

grade Shape, space & measure Handling Data
A*

Trig in 3-d

Sine/cosine rule

Mensuration in 3D solids and 2D shapes

Proof of circle theorems

Proof of construction theorems

 

A

Trig solutions, cosx = 0·5

Trig graphs

Sine and cosine rule

Surface area/volume of various solids

Arcs/sectors/segments

Trig/Pythagoras in 3D

Similarity between length/area/volume

Calculate distance between points using 3D co-ordinates

Prove that triangles are congruent

Circle theorems

Enlargement, negative fractional scale factor

Area of triangle = ½absinC

Histograms

Sampling, stratified sampling

Combined events, using multiplication

 

B

Use of circle theorems

Similar shapes

Trig – multistage

Describing transformations

Interior/Exterior angles of polygons – tessellations

Dimensions of formulae

Tree diagrams

Use of 1-n

Analysing data to compare with theoretical results

Draw box plots from cumulative frequency table

Median/IQR from cumulative frequency table/graph

C

Construct perpendicular bisector of a given line

Loci

Volumes

Circles, area & circumference given diameter

Transformations - Translation using vectors

Trig/Pythagoras

Formal constructions

Polygons

Bearings

Draw box plot

Moving averages

Mean/median from grouped data

Designing questionnaires

Explain the use of mean, median, mode, etc

D

Area unit convert, m² to cm²

Area/circumference of circles given radius

Area of triangle/regular polygons/compound shapes

Draw and measure bearings

Midpoint of line given end co-ordinates

Simple transformations

Polygons

Similar triangles, positive scale factor

Plan and elevation

Parallel lines and shapes linked with the same

Triangle proofs, exterior angle property

Construct a stem and leaf diagram

Relative probability

Find missing probability from list/table of results

Scatter graph

Draw and use lines of best fit

Correlation

Mode from grouped frequencies

Mean from a discrete frequency distribution

Explain defiencies in questionnaires/sampling techniques/practical techniques

E

Geometry of triangle/quadrilateral

Measure simple bearings

Enlargements

Metric/Imperial conversions using known facts

Simple volume calculations

Complete tessellations

Area/Perimeter of rectangles/kites

Planes of symmetry

Nets of shapes

Accurate drawings/angles from given information

Simple transformations

Interpret a stem and leaf diagram to find the median

Interpret a time series graph

Data collection sheets

Find probabilities from 2 way table

Probability of not = 1-n

Use fx in a frequency table

Construct a pie chart

F

Estimate lengths

Co-ordinates in all 4 quadrants

Simple scale drawings

Name/measure and draw angles

Name polygons

Lines of symmetry

Rotational symmetry

Angles on a straight line = 180

Faces/edges/vertices

State simple probability

List all outcomes

Estimate probability from diagram/pie chart/table

Find range, also comparing two distributions

Find mean/mode

Use pie chart

Use Bar charts to compare 2 sets of data

G

Area/Perimeter/volume by counting

Draw 2D shapes

Measure/draw a line/circle

Name shapes

Draw line of symmetry

Use given line of reflection

Accurate drawings of given shapes

Find median/mode using single digits

Draw and interpret line graphs/bar charts/pictograms

Make tables/lists/tally charts, discrete data

Able to choose the ‘most likely’ from information given

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