UK / BG1 / 01
Middle School Mathematics
Number, algebra, shape and data through Fourth level.
Open the syllabusScotland · Broad General Education · S1, S2 and S3
The three years from S1 to S3 have no external maths exam, which makes them easy to underestimate. Yet they end with a decision that shapes the rest of secondary school: which maths course a pupil takes in S4. Education Scotland's Benchmarks are plain about the order. Pupils "should have achieved relevant Fourth level Experiences and Outcomes before embarking on the National 5 qualifications", and schools are told to take careful account of this when S4 options are agreed. So the Broad General Education is not a waiting room before National 5. It is where Third level is secured and Fourth level is reached, and where any gap in algebra, rounding or fractions becomes visible before it costs anything.
Live teaching since 2020 · 10,000+ students · Mapped to the Third and Fourth level Benchmarks
In short
S1 to S3 maths in Scotland is the Broad General Education phase of Curriculum for Excellence, where pupils work through Third and Fourth level numeracy and mathematics before choosing an S4 course. Education Scotland's Benchmarks say pupils should have achieved relevant Fourth level outcomes before starting National 5, and in 2024 to 2025 the Scottish Government reported 91 per cent of S3 pupils at Third level or better in numeracy and 68 per cent at Fourth level. Modern Age Coders teaches S1 to S3 maths live online, either 1-on-1 or in a class of 15 to 20, through its Middle School Mathematics course. There is no charge for the opening class, and we have no tie to any school or council.
Courses for S1 to S3
Middle School Mathematics covers the Third and Fourth level ground. The National 5 course is the next step once Fourth level is secure, and High School Mathematics suits a pupil racing ahead.

BGE / 01
Integers, primes, fractions, ratio, equations, sequences, angles and data: Third level made solid, Fourth level reached.
Open the syllabus →
BGE / 02
For an S3 pupil with Fourth level secure who is ready to start the National 5 skills.
Open the syllabus →
BGE / 03
Algebra and functions in more depth, for pupils working beyond Fourth level.
Open the syllabus →Third and Fourth
Third and Fourth level, organised under the same headings as primary: number, money and measure; shape, position and movement; and information handling. The Benchmarks list what achieving each level looks like.
Education Scotland describes its Experiences and Outcomes as a single journey, letting families see "the curriculum from the early years to the end of S3 as a whole". Most pupils arrive in S1 having achieved Second level and spend S1 and S2 securing Third level. Fourth level is the stretch, overlapping in difficulty with the start of National 5, and many schools teach it through S3.
| Organiser | Third level, in part | Fourth level, in part |
|---|---|---|
| Number | Tables facts to the 12th table; integers in all four operations; decimals to three places | Order of operations with brackets; multi-step problems; scientific notation |
| Multiples and powers | Lowest common multiple, highest common factor, primes to 100, a number as a product of prime factors; powers such as 2 to the 4th | Square roots with positive and negative values; roots as the inverse of powers |
| Fractions and percentages | Converting between forms; adding fractions with different denominators; ratio and simplifying it | Percentage increase and decrease; fractions and mixed numbers in calculations; proportion |
| Algebra | Collecting like terms; solving equations of the form ax ± b = c; sequences from a rule such as T = 4n + 6 | Expanding brackets; equations of the form ax ± b = cx ± d; inequalities; the nth term of a linear sequence; gradient |
| Shape and measure | Corresponding, alternate and vertically opposite angles; bearings and scale drawings; compound areas and volumes | Pythagoras; trigonometry in right-angled triangles; circumference and area of a circle; prisms and cylinders |
| Data and chance | Probability on a scale of 0 to 1; judging whether information is misleading; pie charts and compound bar graphs | Mean, median, mode and range; correlation; choosing and justifying a diagram |
The Fourth level column will look familiar to anyone who has seen a National 5 paper: Pythagoras, trigonometry, gradient and the order of operations all reappear there. That is the point of the Benchmarks' advice. A pupil who reaches S4 with Fourth level secure meets National 5 as a deepening of known ideas; a pupil who reaches S4 at Third level meets most of it for the first time, in a single year with an exam at the end.
The Third and Fourth level pages of Education Scotland's numeracy and mathematics Benchmarks, read on 31 October 2026. The statements are selected and shortened; the document lists more under each organiser, including financial statements we have left out here.
The S3 decision
Because the Benchmarks link presentation for National 5 to Fourth level, and schools use teacher judgement of the level, gathered across S1 to S3, when S4 options are agreed. There is no S3 exam to pass; there is a body of evidence that builds up over three years.
The relevant passage in the Benchmarks sits in its guidance for secondary teachers. Benchmarks "will help teachers ensure that learners make appropriate choices and are presented at an appropriate level for National Qualifications in the senior phase", which "can help avoid excessive workload for teachers and unnecessary assessments for learners". It then gives the example that matters most for maths: pupils "should have achieved relevant Fourth level Experiences and Outcomes before embarking on the National 5 qualifications", adding that "Schools should take careful account of this when options for S4 are being agreed."
| Measure | Per cent of S3 pupils |
|---|---|
| Third level or better in numeracy | 91 |
| Fourth level in numeracy | 68 |
The statistics publication notes that the share of S3 pupils at Fourth level was "at their highest ever across all organisers" and had "increased markedly over the last three years", and adds a caution in its own words: "This increase may be partially due to improvements in assessment and recording at level four." On the figures as published, roughly one S3 pupil in three had not been judged at Fourth level in numeracy in 2024 to 2025.
S3 pupils also take one numeracy assessment in the National Standardised Assessments, once in the year. Its website states that nobody passes or fails it, that it is untimed, and that S3 learners typically finish inside 40 minutes.
It gives the teacher diagnostic information. It is not an S4 entry test, and there are no S3 past papers for it.
Which level is my child working at in maths, and which organisers are not yet secure?
Which S4 maths course is the school expecting, and what would need to change by spring for a different one? Those two questions tell you more than any practice paper.
Sources: Education Scotland Benchmarks, page 3; the government's CfE levels statistics for 2024 to 2025; National Standardised Assessments, parents and carers. Read on 31 October 2026.
What changes
Fourth level asks for the same ideas with fewer supports: rounding to significant figures rather than decimal places, unknowns on both sides of an equation, a formula for a sequence rather than a rule to follow, and right-angled triangles solved with Pythagoras and trigonometry.
| Idea | Third level asks a pupil to | Fourth level asks a pupil to |
|---|---|---|
| Rounding | Round decimals to three places and estimate routinely | Round to a stated number of significant figures and show the effect of rounding too early |
| Equations | Solve ax ± b = c | Solve ax ± b = cx ± d, with brackets, and solve inequalities |
| Sequences | Generate terms from a given rule | Find the nth term formula and use it |
| Triangles | Find missing angles with angle facts | Find sides with Pythagoras, and sides and angles with trigonometry |
| Percentages | Convert and calculate with and without a calculator | Find percentage increase or decrease and choose the most efficient form |
| Accuracy | Choose appropriate units | Work within a tolerance such as 235 mm ± 1 mm |
The Fourth level statement about "the impact of rounding an answer before the final step in a multi-step calculation" is the same habit National 5 markers look for. We teach it in S2.
Unknowns on both sides, brackets and inequalities are where the gap between levels is widest. We spend the most time here.
Pythagoras and trigonometry arrive at Fourth level. A calculator is needed, so we also teach which buttons, in which order, and how to check.
Families comparing with England may find our KS3 maths page useful: much of the content is shared, but Scotland judges it by level rather than year group, and the S4 choice follows from that judgement.
Worked examples
All four are ours, written for Third and Fourth level. They show working the way a teacher in Scotland would want to read it.
Question (ours). Write 360 as a product of its prime factors.
Divide by primes. 360 ÷ 2 = 180, ÷ 2 = 90, ÷ 2 = 45, ÷ 3 = 15, ÷ 3 = 5, and 5 is prime.
Collect. 360 = 2 × 2 × 2 × 3 × 3 × 5 = 23 × 32 × 5.
Check. 8 × 9 = 72 and 72 × 5 = 360. This also prepares the powers notation that Third level introduces.
Question (ours). Solve 5x − 7 = 2x + 11.
Gather x. Subtract 2x from both sides: 3x − 7 = 11.
Gather numbers. Add 7 to both sides: 3x = 18.
Solve and check. x = 6. Left side 30 − 7 = 23, right side 12 + 11 = 23. Equal, so the solution is right.
Question (ours). A cylinder has radius 2.36 cm and height 5 cm. Find its volume to 3 significant figures.
Keep full accuracy. V = π × 2.362 × 5 = 87.487… so V = 87.5 cm3.
See the error. Rounding the radius to 2.4 first gives about 90.5 cm3, three whole units out.
The lesson. Round once, at the end, exactly as the Fourth level Benchmark on truncation and premature rounding asks.
Question (ours). A right-angled triangle has shorter sides 7 cm and 9 cm. Find the longest side and the smaller acute angle.
Pythagoras. 72 + 92 = 49 + 81 = 130, so the hypotenuse is √130 = 11.4 cm to 3 significant figures.
Trigonometry. The smaller angle is opposite the 7 cm side: tan θ = 7 ÷ 9, so θ = 37.9° to 1 decimal place.
Reasonableness. The hypotenuse is longer than 9 and shorter than 7 + 9. The angle is under 45° because 7 is less than 9.
An S3 practice set (ours, with answers). (1) Find the highest common factor and lowest common multiple of 18 and 24. (2) Simplify 3a + 5b − a + 2b. (3) Expand and simplify 4(2x − 3) − 5x. (4) Find the nth term of 7, 11, 15, 19. (5) Increase 240 by 15 per cent. (6) Write 0.00052 in scientific notation. (7) Find the mean and range of 4, 9, 6, 11, 5. (8) Solve 2x + 3 < 15. Answers: (1) 6 and 72; (2) 2a + 7b; (3) 3x − 12; (4) 4n + 3; (5) 276; (6) 5.2 × 10−4; (7) mean 7, range 7; (8) x < 6.
None of these comes from an assessment; there are no S3 past papers in Scotland. Questions 3, 4, 6 and 8 sit at Fourth level and are a fair, if rough, signal of readiness for the National 5 course.
Our lessons
By finding which organisers are secure, closing the gaps in a planned order, and reaching Fourth level with time to spare before the S4 options are set.
A batch of 15 to 20 pupils working at one level suits a pupil who is broadly on track and wants steady practice with peers.
1-on-1 suits a pupil with a specific gap, often algebra or fractions, or one aiming to move from Third to Fourth level within a term.
That lessons guarantee a particular S4 course. The school decides presentation, and the level is the teacher's judgement.
Any connection with a school, a council, Education Scotland or Qualifications Scotland. We are independent and teach alongside school, not instead of it.
Once the S4 course is set, our National 5 Maths page covers the two exam papers, and National 5 vs Higher Maths compares the next two steps. Pupils who enjoy hard problems may like the Scottish Mathematical Challenge.
Progress
Each rung is a set of things a pupil can do unaided, in the order we usually teach them.
| Rung | Usually by | What a pupil can show |
|---|---|---|
| 1. Second level secure | Start of S1 | Decimals, fractions and percentages, order of operations, 24 hour time |
| 2. Third level number | S1 to S2 | Integers, primes and prime factors, powers, ratio, equations of the form ax ± b = c |
| 3. Third level achieved | End of S2 | Angles and bearings, sequences from a rule, probability, compound area and volume |
| 4. Fourth level reached | During S3 | Brackets and both-sides equations, nth term, gradient, Pythagoras, trigonometry, significant figures |
Negative numbers and prime factors look simple and cause errors for years if left loose.
Pupils who like logic may enjoy the coding roadmap, where the same precision is needed.
Every item on rung four reappears in the National 5 course.
We slow down over the summer and pick up again in August.
Catalogue
Grouped by purpose. The first class settles the starting point.
UK / BG1 / 01
Number, algebra, shape and data through Fourth level.
Open the syllabusUK / BG1 / 02
Overlapping content, useful for families moving between systems.
Open the syllabusUK / BG1 / 03
Quick, secure number facts for S1 pupils who need them.
Open the syllabusUK / BG2 / 01
The next course, once Fourth level is secure.
Open the syllabusUK / BG2 / 02
Deeper algebra and functions.
Open the syllabusUK / BG2 / 03
For pupils who enjoy data and chance.
Open the syllabusUK / BG3 / 01
Sequences, primes and graphs tested in Python.
Open the syllabusUK / BG3 / 02
Problem solving well beyond the curriculum.
Open the syllabusUK / BG3 / 03
A first programming language, for S2 and S3.
Open the syllabusLessons
Weekdays or weekends, flexible: choose your batch, or for a very personalised plan choose 1-on-1 at your convenience, weekend mornings or weekdays. Our teaching team works from India; even so, each slot is quoted to Scottish families in UK time.
After school
The usual choice in S1 to S3.
Evening
After clubs, sport or homework.
Weekend
Long enough for a full topic and its practice.
Third or Fourth level, judged in the free class, not assumed from the year.
Most time goes where the jump between levels is largest.
Significant figures and rounding once, practised until automatic.
Work by hand and with a calculator, each checked by estimation.
A short summary after each block, for the S3 options discussion.
A steady group, or one pupil with one teacher.
Student work
Pieces from regular lessons, none of them marked. Student labs has more.

AI and ML
An AI nutrition coach that reads what you eat and works you toward a target.

AI and ML
A chatbot that answers mathematics and programming questions, built and deployed by a student.

AI and ML
An assistant that helps a young person recognise unsafe situations online.

Web app
A weather forecasting site with live conditions for any location.
Fees
One free class first. Then a monthly fee, lower in a group and higher for 1-on-1, charged only after a course and a weekly slot are agreed. No contract and no deposit.
Free first class
USD 0
no card required
Group batch
USD 100
a month, billed in US dollars
One to one
USD 150
a month, billed in US dollars
What families say
Reviews from parents on Google, exactly as written.
★★★★★
"The one step solution for my son. Modern Age Coders make learning coding so simple that kids love it. The teachers explain complex concepts clearly with practical exercises and interactive content."
Ria Mukherjee
Parent
★★★★★
"Modern Age Coders has been a game-changer for me. I struggled to grasp IT concepts and coding before joining, but their classes transformed everything. I can now confidently write complex programs with ease."
Samriddha Mondal
Student
★★★★★
"One of the most wonderful education centres out there. Education is not limited to school syllabus but focuses on skill development."
Vansh Agarwal
Student
★★★★★
"My child Dhairya is really enjoying the Modern Age Coders classes. This is his first online class and he eagerly looks forward to it. I can already see his improvement, and the teachers are very cooperative."
Sonam Oswal
Parent of Dhairya
★★★★★
"Modern Age Coders have wonderful teachers who teach in a clear, easy and practical way. The teacher boosts students' confidence and inspires them to learn without hesitation."
Sonu Goyal
Parent
★★★★★
"I highly recommend this computer coding class! The teachers are incredibly knowledgeable and passionate about coding."
Ritu Kedia
Parent
S1 to S3 questions
The Scottish Government reports S3 pupils at Third level or better and at Fourth level. For 2024 to 2025 it put 91 per cent of S3 pupils at Third level or better in numeracy, and 68 per cent at Fourth.
Education Scotland's Benchmarks say pupils should have achieved relevant Fourth level outcomes before starting National 5, and that schools should take careful account of this when S4 options are agreed. The final decision rests with the school.
No national ones. There is no S3 maths exam in Scotland. Teachers judge the level from work across the year, and the S3 standardised assessment has no pass or fail.
Fourth level adds significant figures, equations with unknowns on both sides, the nth term, gradient, Pythagoras and trigonometry. Third level covers primes, powers, ratio, simpler equations and angle facts.
It is the phase of Curriculum for Excellence from the early years to the end of S3. In maths, S1 to S3 is where Third and Fourth level are taught before the senior phase.
It is untimed. According to the assessment website, S3 learners on average finish inside 40 minutes, and no score counts as a fail.
The content overlaps a great deal, but Scotland describes it by level rather than by year, and the end of S3 feeds the choice of S4 course rather than a GCSE tier.
Weekdays or weekends, flexible: choose your batch, or for a very personalised plan choose 1-on-1 at your convenience, weekend mornings or weekdays. All times are given in UK time.
Usually Middle School Mathematics, at Third or Fourth level depending on the free first class. A pupil with Fourth level secure may move straight on to the National 5 course.
No. We run our own live online classes and have no link to any school, council, Education Scotland or Qualifications Scotland.
More for Scottish pupils
The senior phase courses, and puzzles for keen pupils.
The S4 course most pupils move to after Fourth level.
The two senior steps compared.
Where the senior phase leads in S5.
Competition problems for able pupils.
Hourly rates, formats and questions to ask a tutor.
The Scottish system and our coding classes.
Part of the guide: UK maths exam boards and specification codes
More guides: UK maths year by year, Reception to Year 11 · UK selective school maths tests: 7+, 11+, 13+ and 16+ · UK university admissions: maths tests and computing applications · UK maths enrichment, competitions and able pupils
Start here
Send a phone number and we will call at a UK time that works for you. The class is a short look at Third and Fourth level problems, followed by a plain account of where your child stands.
Want to look first? The Middle School Mathematics syllabus lists every topic, and how we teach describes a lesson.
WhatsApp us · +91 91233 66161 · connect@modernagecoders.com
WhatsApp is the quickest route and free from a UK mobile. Our office is in India, so the answer arrives from a +91 number.
A priority demo is a full class of about 45 to 60 minutes. After the class the mentor sends a written skill report and a personal learning roadmap on WhatsApp. If you enrol, the demo fee is adjusted against your first month's fee. Share your demo Order ID with us on WhatsApp and we take it off.
Book a priority demo