IGCSE Mathematics
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Master every corner of IGCSE Maths — for good

From fractions in Form 1 to circle theorems in Form 4, this school walks you through the full IGCSE syllabus one clear, logical step at a time — so exam day feels like a formality, not a surprise.

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IGCSE Mathematics
This school is step 2 of IGCSE — a 10-school journey.See the whole path

Maths isn't a talent — it's a sequence, and if we build it in the right order, everything clicks into place.

Renstay College

What you'll learn

What you'll be able to do

  • Confidently apply number operations, fractions, decimals, percentages, and ratio across all IGCSE-level problem types
  • Solve linear and quadratic equations, manipulate algebraic expressions, and interpret functions and graphs with accuracy
  • Use geometric reasoning — angles, congruence, similarity, circle theorems, and transformations — to solve both abstract and real-world problems
  • Perform accurate calculations in mensuration: perimeter, area, surface area, and volume for all standard 2D and 3D shapes
  • Collect, represent, and analyse statistical data using mean, median, mode, probability, and cumulative frequency diagrams
  • Approach any IGCSE past-paper question with a structured method, time-managed technique, and the exam vocabulary examiners reward

How it works

A school that adapts to you

This isn't a set of static videos. Every lesson is generated live and tuned to where you actually are.

We learn your level

A quick placement check tailors your starting point so you're never bored or lost.

Lessons adapt as you go

Each lesson is written for your pace and your goal, adjusting as your skills grow.

Your AI coach keeps you moving

Checkpoints, feedback, and gentle nudges turn progress into a real result.

The curriculum

What's inside your school

47 modules · 121 lessons

1

Types of number

• convert between numbers and words, e.g.
six billion is 6000000000
10007 is ten thousand and seven
• express 72 as a product of its prime factors
• find the highest common factor (HCF) of two
numbers
• find the lowest common multiple (LCM) of two
numbers.

  • 1.1natural numbersIncluded
  • 1.2integers (positive, zero and negative)Included
  • 1.3prime numbersIncluded
  • 1.4square numbersIncluded
  • 1.5cube numbersIncluded
  • 1.6common factorsIncluded
  • 1.7common multiplesIncluded
  • 1.8rational and irrational numbersIncluded
  • 1.9reciprocalsIncluded
2

Sets

Venn diagrams are limited to two sets.
The following set notation will be used:
• n(A) Number of elements in set A
• A′ Complement of set A
• Universal set
• A ∪ B Union of A and B
• A ∩ B Intersection of A and B.
Example definition of sets:
A = {x: x is a natural number}
B = {a, b, c, …}
C = {x: a ⩽ x ⩽ b}

  • 2.1Understand and use set languagesIncluded
  • 2.2Notation and Venn diagrams to describe setIncluded
3

Powers and roots

Includes recall of squares and their corresponding
roots from 1 to 15, and recall of cubes and their
corresponding roots of 1, 2, 3, 4, 5 and 10, e.g.:
• Write down the value of 169 .
• Work out 58 2 3 # .

  • 3.1squaresIncluded
  • 3.2square rootsIncluded
  • 3.3cubesIncluded
  • 3.4cube rootsIncluded
  • 3.5other powers and roots of numbers.Included
  • 3.6New lessonIncluded
4

Fractions, decimals and percentages

Candidates are expected to be able to write
fractions in their simplest form.
Candidates are not expected to use recurring
decimal notation.

  • 4.1proper fractionsIncluded
  • 4.2improper fractionsIncluded
  • 4.3mixed numbersIncluded
  • 4.4decimalsIncluded
  • 4.5percentages.Included
5

Ordering

  • 5.1Order quantities by magnitude and demonstrate familiarity with the symbols =, ≠, >, < , ⩾ and ⩽ .Included
6

New module

  • 6.1New lessonIncluded
7

The four operations

• negative numbers
• improper fractions
• mixed numbers
• practical situations, e.g. temperature changes.

  • 7.1Use the four operations for calculations with integers, fractions and decimals, including correct ordering of operations and use of brackets.Included
8

Indices I

find the value of 7 –2.
find the value of 2–3 × 24
, (23
)
2
, 23
÷ 24

  • 8.1Understand and use indices (positive, zero and negative integers)Included
  • 8.2Understand and use indices (positive, zero and negative integers)Included
9

Standard form

  • 9.1Use the standard form A × 10n where n is a positive or negative integer and 1 ⩽ A < 10Included
  • 9.2Convert numbers into and out of standard form.Included
  • 9.3Calculate with values in standard formIncluded
10

Estimation

Includes decimal places and significant figures.
e.g. write 5764 correct to the nearest thousand.
e.g. by writing each number correct to 1 significant
figure, estimate the value of ..
.
9790 765
41 3

.

  • 10.1Round values to a specified degree of accuracyIncluded
  • 10.2Make estimates for calculations involving numbers, quantities and measurements.Included
  • 10.3Round answers to a reasonable degree of accuracy in the context of a given problemIncluded
11

Limits of accuracy

e.g. write down the upper bound of a length
measured correct to the nearest metre.
Candidates are not expected to find the bounds
of the results of calculations which have used data
rounded to a specified accuracy

  • 11.1Give upper and lower bounds for data rounded to a specified accuracyIncluded
12

Ratio and proportion

e.g. 20:30:40 in its simplest form is 2:3:4.
e.g. adapt recipes; use map scales; determine best
value.

  • 12.1give ratios in their simplest formIncluded
  • 12.2divide a quantity in a given ratioIncluded
  • 12.3use proportional reasoning and ratios in context.vIncluded
13

Rates

e.g. calculate with:
• hourly rates of pay
• exchange rates between currencies
• flow rates
• fuel consumption.
e.g. calculate with:
• pressure
• density
• population density.
Required formulas will be given in the question.
Knowledge of speed/distance/time formula is
required.
e.g. A cyclist travels 45km in 3 hours 45 minutes.
What is their average speed?
Notation used will be, e.g. m/s (metres per second),
g/cm3
(grams per cubic centimetre)

  • 13.1Use common measures of rate.Included
  • 13.2Apply other measures of rate.Included
  • 13.3Solve problems involving average speed.Included
14

Percentages

Problems may include repeated percentage
change.
Formulas are not given.
e.g. find the cost price given the selling price and
the percentage profit.
Percentage calculations may include:
• deposit
• discount
• profit and loss (as an amount or a percentage)
• earnings
• percentages over 100%.

  • 14.1Calculate a given percentage of a quantityIncluded
  • 14.2Express one quantity as a percentage of anotherIncluded
  • 14.3Calculate percentage increase or decreaseIncluded
  • 14.4Calculate with simple and compound interest.Included
  • 14.5Calculate using reverse percentages.Included
15

Using a calculator

e.g. know not to round values within a calculation
and to only round the final answer.
e.g. enter 2 hours 30 minutes as 2.5 hours or
2° 30’ 0’’.
e.g. in money 4.8 means $4.80; in time 3.25 means
3 hours 15 minutes.

  • 15.1Use a calculator efficientlyIncluded
  • 15.2Enter values appropriately on a calculator.Included
  • 15.3Interpret the calculator display appropriately Interpret the calculator display appropriately Interpret the calculator display appropriately Interpret the calculator display appropriately Interpret the calculator display appropriatelyIncluded
16

Time

1 year = 365 days.
In the 24-hour clock, for example, 3.15 a.m. will be
denoted by 0315 and 3.15 p.m. by 1515.
Includes problems involving time zones, local times
and time differences.

  • 16.1Calculate with time: seconds (s), minutes (min), hours (h), days, weeks, months, years, including the relationship between units.Included
  • 16.2Calculate times in terms of the 24-hour and 12-hour clockIncluded
  • 16.3Read clocks and timetablesIncluded
17

Money

  • 17.1Calculate with moneyIncluded
  • 17.2Convert from one currency to anotherIncluded
18

Convert from one currency to another

e.g. depreciation, population change.
Knowledge of e is not required.

  • 18.1Use exponential growth and decayIncluded
19

Surds

Examples include:
• 20 = 25
200 − 32 = 62 .
Examples include:
• 5
10 = 25
13
1
2
13
− + = + .

  • 19.1Understand and use surds, including simplifying expressionIncluded
  • 19.2Rationalise the denominator.Included
20

Introduction to algebra

  • 20.1Know that letters can be used to represent generalised numbers.Included
  • 20.2Substitute numbers into expressions and formulas.Included
21

Algebraic manipulation

Simplify means give the answer in its simplest form,
e.g. 2a
2

  • 3ab – 1 + 5a
    2
    – 9ab + 4 = 7a
    2
    – 6ab + 3.
    e.g. expand 3x(2x – 4y), (3x + y)(x – 4y).
    Includes products of more than two brackets,
    e.g. expand (x – 2)(x + 3)(2x + 1).
    Factorise means factorise fully,
    e.g. 9x
    2
  • 15xy = 3x(3x + 5y)
  • 21.1Simplify expressions by collecting like terms.Included
  • 21.2Expand products of algebraic expressions.Included
  • 21.3Factorise by extracting common factorsIncluded
  • 21.4Factorise expressions of the form:Included
  • 21.5Complete the square for expressions in the form ax 2 + bx + c.Included
22

Algebraic fractions

Examples include:
• x
3

  • x – 4
    2
    • 2x
    3 – 3(x –5)
    2
    • 3a
    4 × 9a
    10
    • 3a
    4 ÷ 9a
    10
    • 1
    x – 2
  • x + 1
    x – 3
    .
    e.g. x
    2
    – 2x
    x
    2
    – 5x + 6
  • 22.1Factorise and simplify rational expressions.Included
23

Indices II

e.g. solve:
• 32x = 2
• 5x + 1 = 25x
.
e.g. simplify:
• 3xx 3
4 2 2
1

xx 5
2 2 2 2
1
' −
• x
3
2 5 J 3
L
K
K
N
P
O
O .
Knowledge of logarithms is not required.

  • 23.1Understand and use indices (positive, zero, negative and fractional).Included
  • 23.2Understand and use the rules of indices.Included
24

Equations

.g. write an expression for the product of two
consecutive even numbers.
Includes constructing simultaneous equations.
Examples include:
• 3x + 4 = 10
• 5 – 2x = 3(x + 7).
Examples include:
• x
2x + 1
= 4
• 2
x + 2 + 3
2x – 1 = 1
• x
x + 2 = 3
x – 6 .
With powers no higher than two.
Includes writing a quadratic expression in
completed square form.
Candidates may be expected to give solutions in
surd form.
The quadratic formula is given in the List of
formulas.
e.g. change the subject of a formula where:
• the subject appears twice
• there is a power or root of the subject.

  • 24.1Construct expressions, equations and formulas.Included
  • 24.2Solve linear equations in one unknownIncluded
  • 24.3Solve fractional equations with numerical and linear algebraic denominators.Included
  • 24.4Solve simultaneous linear equations in two unknowns.Included
  • 24.5Solve simultaneous equations, involving one linear and one non-linear.Included
  • 24.6Solve simultaneous equations, involving one linear and one non-linear.Included
  • 24.7Change the subject of formulasIncluded
25

Inequalities

When representing and interpreting inequalities on
a number line:
• open circles should be used to represent strict
inequalities (<, >)
• closed circles should be used to represent
inclusive inequalities (⩽, ⩾).
e.g. – 3 ⩽ x < 1
–3–2–10 1
x
Examples include:
• 3x < 2x + 4
• –3 ⩽ 3x – 2 < 7 .
The following conventions should be used:
• broken lines should be used to represent strict
inequalities (<, >)
• solid lines should be used to represent inclusive
inequalities (⩽, ⩾)
• shading should be used to represent unwanted
regions (unless otherwise directed in the
question).
e.g.
0 12 0 12
x x
yy
1
2
1
2
x < 1
y ⩾ 1
Linear programming problems are not included.

  • 25.1Represent and interpret inequalities, including on a number line.Included
  • 25.2Construct, solve and interpret linear inequalities.Included
  • 25.3Represent and interpret linear inequalities in two variables graphically.Included
  • 25.4List inequalities that define a given region.Included
26

Sequences

Subscript notation may be used, e.g. Tn is the nth
term of sequence T.
Includes linear, quadratic, cubic and exponential
sequences and simple combinations of these.

  • 26.1Continue a given number sequence or patternIncluded
  • 26.2Recognise patterns in sequences, including the term-to-term rule, and relationships between different sequences.Included
  • 26.3Find and use the nth term of sequencesIncluded
27

Proportion

Includes linear, square, square root, cube and cube
root proportion.
Knowledge of proportional symbol (∝) is required.

  • 27.1Express direct and inverse proportion in algebraic terms and use this form of expression to find unknown quantities.Included
28

Graphs in practical situations

Includes estimation and interpretation of the
gradient of a tangent at a point.
Areas will involve linear sections of the graph only.

  • 28.1Use and interpret graphs in practical situations including travel graphs and conversion graphs.Included
  • 28.2Draw graphs from given dataIncluded
29

Graphs of functions

find the intersection of a line and a curve

  • 29.1Construct tables of values, and draw, recognise and interpret graphs for functions of the following formsIncluded
  • 29.2Solve associated equations graphically, including fnding and interpreting roots by graphical methods.Included
30

Sketching curves

Knowledge of symmetry and roots is required.
Knowledge of turning points is not required

  • 30.1linearIncluded
  • 30.2quadratic.Included
31

Coordinates

  • 31.1Use and interpret Cartesian coordinates in two dimensions.Included
32

Drawing linear graphs

Equations will be given in the form y = mx + c
(e.g. y = –2x + 5), unless a table of values is given.

  • 32.1Draw straight-line graphs for linear equations.Included
33

Gradient of linear graphs

From a grid only.

  • 33.1Find the gradient of a straight lineIncluded
34

Equations of linear graphs

Questions may:

• use and request lines in the forms
y = mx + c
x = k

• involve fnding the equation when the graph is
given

• ask for the gradient or y-intercept of a graph
from an equation, e.g. fnd the gradient and
y-intercept of the graph with the equation
y = 6x + 3.

  • 34.1Interpret and obtain the equation of a straight-line graph in the form y = mx + c.Included
35

Parallel lines

e.g. fnd the equation of the line parallel to
y = 4x – 1 that passes through (1, –3).

  • 35.1Find the gradient and equation of a straight line parallel to a given line.Included
36

Geometrical terms

Candidates are not expected to show that two
shapes are congruent.

  • 36.1Use and interpret the following geometrical termsIncluded
  • 36.2Use and interpret the vocabulary ofIncluded
37

Geometrical terms (continued)

• cube

• cuboid

• prism

• cylinder

• pyramid

• cone

• sphere (term ‘hemisphere’ not required)

• face

• surface

• edg

  • 37.1Use and interpret the vocabulary of a circle.Included
38

Geometrical constructions

A ruler should be used for all straight edges.
Constructions of perpendicular bisectors and angle
bisectors are not required.
e.g. construct a rhombus by drawing two triangles.
Construction arcs must be shown.
Examples include:

• draw nets of cubes, cuboids, prisms and
pyramids

• use measurements from nets to calculate
volumes and surface areas.

  • 38.1Measure and draw lines and anglesIncluded
  • 38.2Construct a triangle, given the lengths of all sides, using a ruler and pair of compasses only.Included
  • 38.3Draw, use and interpret netsIncluded
39

Scale drawings

A ruler must be used for all straight edges.
Bearings are measured clockwise from north
(000° to 360°).
e.g. fnd the bearing of A from B if the bearing of B
from A is 025°.
Includes an understanding of the terms north, east,
south and west.
e.g. point D is due east of point C.

  • 39.1Draw and interpret scale drawings.Included
  • 39.2Use and interpret three-fgure bearings.Included
40

Similarity

  • 40.1Calculate lengths of similar shapes.Included
41

Symmetry

Includes properties of triangles, quadrilaterals and
polygons directly related to their symmetries.

  • 41.1Recognise line symmetry and order of rotational symmetry in two dimensions.Included
42

Angles

Knowledge of three-letter notation for angles is
required, e.g. angle ABC. Candidates are expected
to use the correct geometrical terminology when
giving reasons for answers.

  • 42.11 Calculate unknown angles and give simple explanations using the following geometrical properties:Included
  • 42.22 Calculate unknown angles and give geometric explanations for angles formed within parallel lines:Included
  • 42.3Know and use angle properties of regular polygons.Included
43

Mensuration

Units include:

• mm, cm, m, km

• mm
2
, cm
2
, m
2
, km
2

• mm
3
, cm
3
, m
3

• ml, l

• g, kg.
Conversion between units includes:

• between diferent units of area, e.g. cm
2
↔ m
2

• between units of volume and capacity,
e.g. m
3
↔ litres.

  • 43.1Units of measureIncluded
  • 43.2Area and perimeterIncluded
  • 43.3Circles, arcs and sectorsIncluded
  • 43.4Surface area and volumeIncluded
  • 43.5Compound shapes and parts of shapesIncluded
44

Trigonometry

  • 44.1Pythagoras’ theoremIncluded
  • 44.2Right-angled trianglesIncluded
45

Transformations and vectors

Questions will not involve combinations of
transformations. A ruler must be used for all straight
edges.

  • 45.1TransformationsIncluded
46

Probability

Probability notation is not required.
Probabilities should be given as a fraction, decimal
or percentage. Problems may require using
information from tables, graphs or Venn diagrams
(limited to two sets).
e.g. The probability that a counter is blue is 0.8.
What is the probability that it is not blue

  • 46.1Introduction to probabilityIncluded
  • 46.2Relative and expected frequenciesIncluded
  • 46.3Probability of combined eventsIncluded
47

Statistics

. tally tables, two-way tables.

  • 47.1Classifying statistical dataIncluded
  • 47.2Interpreting statistical dataIncluded
  • 47.3Appreciate restrictions on drawing conclusions from given dataIncluded
  • 47.4Statistical charts and diagramsIncluded
  • 47.5Scatter diagramsIncluded

Who it's for

Is this you?

The Form 1 Starter

Just beginning secondary school and wants to build solid number and algebra foundations before bad habits have a chance to form.

The Form 4 Exam Candidate

Sitting IGCSE in months and needs to close topic gaps, sharpen exam technique, and stop losing marks on questions they actually know.

The Supportive Parent

Wants to understand what their child is learning well enough to help at home, even if it's been years since they touched a textbook.

The Classroom Teacher

Looking for a reliable, syllabus-mapped supplement to recommend to students or use alongside their own scheme of work.

The Geometry Avoider

Comfortable with numbers and algebra but quietly terrified of circle theorems, vectors, and trigonometry — and ready to fix that.

The Self-Directed Learner

Prefers to work at their own pace outside the classroom and wants a structured, complete resource they can trust from start to finish.

Questions

Frequently asked

Your teacher

A note from your teacher

Renstay College

Renstay College

If you're reading this, there's a good chance you — or someone you love — is somewhere on the spectrum between "maths is fine, I think" and "I genuinely don't know where it all went wrong." Both of those students end up in the same place come exam season: wishing they'd built the foundations more carefully when there was still time. I've seen it more times than I can count, and I built this school because the fix is simpler than most people believe.

Maths isn't a talent. It's a sequence. Every topic in the IGCSE syllabus sits on top of something that came before it — and when a student struggles with quadratic equations, nine times out of ten the real issue started back with factorisation, or even with how comfortable they are rearranging expressions. This school is structured the way the subject actually works: Number first, then Algebra foundations, then Algebra advanced, then Geometry and Trigonometry, Mensuration, and Statistics. Each unit is the groundwork for the next. We don't skip the boring bits, because in maths the boring bits are load-bearing walls.

What I've tried to do in every single lesson is explain things the way I'd explain them to a student sitting across a desk from me — with plain language, a worked example you can follow step by step, and a healthy acknowledgement that some topics (circle theorems, I'm looking at you) genuinely take more than one pass. The dry wit is deliberate, by the way. Staying engaged matters, and there's no rule that says learning how to calculate a sector area has to feel like a dental appointment.

The part I'm most proud of is the Exam Preparation section. Understanding the content is necessary but not sufficient. IGCSE papers reward students who know how to structure their working, use the right vocabulary, read mark schemes intelligently, and stay composed when a question looks unfamiliar. That section covers all of it — common mistakes, timed practice, how to think through a problem you haven't seen before. Because the exam isn't testing whether you recognise questions. It's testing whether you can think.

Whether you're a student starting Form 1 with everything ahead of you, a Form 4 student who needs to patch gaps quickly, a parent who wants to understand what their child is working on, or a teacher looking for a structured supplement — there's a place for you here. Come in, take it one step at a time, and let's make maths the subject you no longer have to worry about.

Renstay College

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  • 47 modules, 121 lessons
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