---
title: "Coding Classes in Cambridgeshire | Live Online, Ages 6 to 67"
description: "Live online coding, Python, Java and maths classes across Cambridgeshire, from Peterborough and Cambridge to St Neots, Huntingdon, Wisbech, March and Ely."
canonical: https://learn.modernagecoders.com/coding-classes-in-cambridgeshire
source: src/pages/coding-classes-in-cambridgeshire.html
---
> Live online coding, Python, Java and maths classes across Cambridgeshire, from Peterborough and Cambridge to St Neots, Huntingdon, Wisbech, March and Ely.

Skip to contentCourses for Cambridgeshire

## Popular first courses in Cambridgeshire

An eight-year-old in St Ives who invents codes and ciphers, a Year 7 in Whittlesey who loves number puzzles, a Year 10 in Huntingdon who wants to learn Java properly, and a parent in Soham returning to work with new skills. Four starting points, each beginning with a free lesson.

[![Problem Solving and Computational Thinking for Kids course thumbnail](/images/problem-solving-kids.webp)Ages 7 to 12Problem Solving and Computational Thinking for KidsComputational thinking and logic puzzles for children, including the patterns hidden in numbers.See the syllabus](/courses/problem-solving-and-computational-thinking-for-kids)[![Python and AI for Kids course thumbnail](/images/python-kids.webp)Ages 10 to 13Python and AI for KidsFirst real Python: loops, lists and the conditions needed to test whether a number is prime.See the syllabus](/courses/python-ai-kids-masterclass)[![Java for Teens course thumbnail](/images/java-teens.webp)Ages 13 to 18Java for TeensCore Java for teenagers through apps, games and data structures, with a Spring Boot introduction.See the syllabus](/courses/java-programming-masterclass-for-teens)[![Python Masterclass course thumbnail](/images/python-college.webp)AdultsPython MasterclassPython from zero for adults, building to object-oriented design, files and exceptions.See the syllabus](/courses/python-programming-masterclass-zero-to-advanced-college)

Browse the [course atlas](/course-atlas) for more than one hundred options and use the [coding roadmap](/coding-roadmap) to check prerequisites.

The four we are known for

### Python, AI, vibe coding and agentic coding

These run underneath everything above. Every one is live and online, placed by ability rather than by age, and the first class is free.

[![Vibe Coding for Teens course thumbnail](/images/vibe-coding-teens.webp)Vibe codingAges 13 to 17Vibe Coding for TeensPython, web and AI projects where the learner still owns the thinking.See the syllabus](/courses/vibe-coding-for-teens-python-web-ai-projects-course)[![Python Automation Course course thumbnail](/images/python-college.webp)Python and AICollege and adultPython Automation CourseAutomate the work you already do, then let AI carry part of it.See the syllabus](/courses/python-ai-automation-masterclass-college)[![AI and Machine Learning for Teens course thumbnail](/images/ai-ml-teens.webp)AI and MLAges 14 to 18AI and Machine Learning for TeensTrain a model, read what it learned, and be able to say why it is wrong.See the syllabus](/courses/ai-ml-masterclass-teens)[![Codex & Claude Code course thumbnail](/images/codex-claude-code-adults.webp)Agentic codingProfessionalsCodex & Claude CodeRun AI coding agents on real work without losing control of the codebase.See the syllabus](/courses/codex-and-claude-code-ai-coding-agents-masterclass-for-adults-professionals)Cambridgeshire in figures

## Six councils, 894,519 people and two cities at opposite ends

Council populations are 2021 Census counts from Nomis. Town sizes come from the ONS built-up areas, each compared with our own sum of the census output areas in the county.

| Council | Usual residents | Main towns |
| --- | --- | --- |
| Peterborough | 215,671 | Peterborough, Eye |
| Huntingdonshire | 180,832 | St Neots, Huntingdon, St Ives, Yaxley, Ramsey |
| South Cambridgeshire | 162,118 | Cambourne, Sawston, Histon and Impington, Northstowe |
| Cambridge | 145,674 | Cambridge |
| Fenland | 102,462 | Wisbech, March, Whittlesey, Chatteris |
| East Cambridgeshire | 87,762 | Ely, Soham, Littleport, Burwell |

The two cities behave in opposite ways against their boundaries. Peterborough's unitary area, 215,671 people, is larger than its built-up area of 190,605, because the council takes in villages around the city. Cambridge is the reverse: the built-up area, 152,740, spills over the city council's line into South Cambridgeshire, which is why the city district holds only 145,674. Between them lie the fens, where towns are small and far apart and the nearest after-school club may be a long drive across flat, straight roads.

| Built-up area | Residents | Built-up area | Residents |
| --- | --- | --- | --- |
| Peterborough | 190,605 | Littleport | 9,165 |
| Cambridge | 152,740 | Histon and Impington | 7,780 |
| St Neots | 33,265 | Godmanchester | 7,715 |
| Wisbech | 26,795 | Sawston | 7,270 |
| Huntingdon | 25,600 | Brampton | 6,585 |
| March | 21,345 | Great Shelford and Stapleford | 6,160 |
| Ely | 19,185 | Cottenham | 6,155 |
| St Ives | 16,820 | Burwell | 5,915 |
| Whittlesey | 13,830 | Sawtry | 5,875 |
| Cambourne | 11,075 | Ramsey | 5,730 |
| Chatteris | 11,015 | Eye | 5,415 |
| Soham | 10,615 | Waterbeach | 5,375 |
| Yaxley | 9,405 | Longstanton and Northstowe | 5,275 |

Twenty-five of the twenty-six rows match our own output-area count within rounding. Wisbech is the exception: its built-up area has about 1,260 residents across the line in Norfolk, and the table prints the ONS total for the whole town. Newmarket, which the ONS lists partly against East Cambridgeshire, has only about 2,090 of its 18,855 people on the Cambridgeshire side, so it belongs to Suffolk's story rather than this one.

### School dates

The Cambridgeshire County Council term-dates address we tried returned "page not found" on 26 September 2026, so we print no calendar. Peterborough sets its own, as can academies. Every family agrees lesson breaks with us around the dates their own school has given them.

The Cambridgeshire project

## Primes on a 512-word machine: fast, frugal, or both?

Three ways to list the primes below ten thousand, every step counted, and each method measured against EDSAC's published limits.

Method one is trial division: test each number by dividing it by the primes found so far, stopping at its square root. It remembers only the primes themselves. Method two is the sieve of Eratosthenes: write down every number, then cross out the multiples of each prime in turn; whatever survives is prime. It does far less work but needs a mark for every number. The learner codes both, checks that they produce exactly the same list, and counts the steps. To make the cost concrete we price each counted step as one EDSAC instruction at 650 a second, a deliberate simplification, since a real division took EDSAC far longer than an addition.

| Method | Counted steps | At 650 a second | Memory in use at once |
| --- | --- | --- | --- |
| Trial division by primes up to the square root | 43,752 divisions | 67.3 seconds | 1,229 primes kept |
| Sieve of Eratosthenes | 16,979 crossings-out | 26.1 seconds | 10,000 marks |
| Segmented sieve, 256 numbers at a time | 16,979 crossings-out | 26.1 seconds | 281 words |
| EDSAC's own memory at first |   |   | 512 words |

Read the last column against the last row. The plain sieve is the fastest, but ten thousand marks will never fit in 512 words. Trial division is frugal, but even the list of primes it must keep, 1,229 of them, is more than twice EDSAC's early memory. The segmented sieve gets both wins at once: it sieves 256 numbers at a time, keeping only those 256 marks plus the 25 small primes below 100 that it needs to do the crossing out, 281 words in all. It does exactly the same 16,979 crossings-out as the full sieve, because it is the same work done in slices.

Push the target to a hundred thousand and the gap widens: trial division needs 744,435 divisions, about 19 minutes at our rate, while the sieve needs 193,076 crossings-out, about five minutes, and the segmented version still fits in 321 words. The general lesson reaches far beyond primes. Speed and memory can often be traded against each other, and sometimes a smarter structure gives you both. Recognising which situation you are in is a large part of what it means to design software.

### Ages 10 to 13

List the primes below 100 by hand with a sieve on squared paper, then write the same sieve in Python and compare.

### Ages 13 to 16

Code trial division and the sieve, prove they agree, and count the steps each needs for 1,000, 10,000 and 100,000.

### Ages 16 and up

Build the segmented sieve, choose a block size, and measure how memory and steps change as the block shrinks and grows.

### What we are and are not claiming

EDSAC's 512 words, 18 operation codes and 650 instructions a second are figures from The National Museum of Computing. Pricing every counted step as one instruction is our own simplification for comparing methods; it is not how long EDSAC would really have taken, and nothing here describes any program actually run on EDSAC.

Why Cambridge

## A 1949 computer with 18 instructions and a mercury memory

The Cambridgeshire link, from the museum building a working replica.

| Fact | In the museum's words |
| --- | --- |
| Who and when | Designed in 1947 by a team led by Maurice Wilkes; "first successful program run on 6th May 1949, at the Cambridge University Mathematical Laboratory". |
| How long | The original operated for almost 10 years. |
| How much | "only 18 operation codes and initially just 512 words of memory, later extended to 1024". |
| How fast | "Instructions were executed at a rate of approximately 650 per second." |
| How it remembered | Delay-line tanks, metal tubes filled with mercury that exploited the slow speed of sound in the liquid metal. |

The museum says Wilkes built EDSAC because he had watched researchers doing laborious sums on mechanical desk calculators and wanted to give them something better. That motive, making a tool useful to people who are not computer specialists, is still the right reason to teach programming. A Cambridgeshire learner today has millions of times EDSAC's speed on a school laptop, and the same design decisions to make about memory and time.

Modern Age Coders has no connection with The National Museum of Computing, the University of Cambridge, Cambridgeshire County Council or Peterborough City Council, and nothing on this page implies one. The EDSAC facts are the museum's; the prime programs, the step counts and any error in them are ours.

Nearby pages

Three Cambridgeshire places have their own pages: [Cambridge](/best-coding-class-in-cambridge), [Peterborough](/best-coding-class-in-peterborough) and [Ely](/best-coding-class-in-ely). [Hertfordshire](/coding-classes-in-hertfordshire) and [Essex](/coding-classes-in-essex) lie to the south.

The path through

## From spotting patterns in numbers to designing for limits

The free lesson places each learner. Year group helps us guess; what the learner can do settles it.

Ages 6 to 10

### Patterns and rules

Scratch and puzzles that ask children to find and follow a rule, the seed of every algorithm.

[Problem Solving and Computational Thinking for Kids](/courses/problem-solving-and-computational-thinking-for-kids)[Scratch Coding for Kids](/courses/scratch-programming-complete-course)Ages 10 to 13

### Loops that test numbers

Python loops and conditions that check numbers for patterns, primes included, and count how much work they did.

[Python and AI for Kids](/courses/python-ai-kids-masterclass)[Maths Through Coding](/courses/maths-through-coding)Ages 13 to 18

### Data structures and cost

Java or Python with arrays, lists and the discipline of measuring time and memory before choosing a design.

[Java for Teens](/courses/java-programming-masterclass-for-teens)[Problem Solving for Teens](/courses/problem-solving-dsa-masterclass-teens)Ages 18 to 67

### Programs that scale

Adults write Python that copes with large files and long lists, and learn where time and memory go.

[Python Masterclass](/courses/python-programming-masterclass-zero-to-advanced-college)[Data Structures & Algorithms Course](/courses/data-structures-algorithms-masterclass-college)AI and the limits that remain

## An AI writes a prime sieve in one line. Would it notice the sieve does not fit?

Not unless the limit is in the question, and someone has to know it belongs there.

Ask a chatbot for the primes below a large number and it will give you a sieve, usually a neat and correct one. It will not ask how much memory you have, because on the machine it imagines memory is plentiful. On a phone app, a small sensor, a web page or a database query over millions of rows, that assumption is where programs fail, not with a wrong answer but with no answer at all.

A Cambridgeshire student who has squeezed the primes below ten thousand into 281 words knows to ask the missing questions: how big is the input, how much can I hold at once, and can the work be done in slices? Those questions turn a textbook answer into one that works on the machine in front of you, and they are exactly the ones an AI assistant needs a human to supply.

So a Cambridgeshire teenager should learn to program in 2026 for the same reason EDSAC's users did: to make a limited machine do useful work, and to know which limit matters. The longer argument is in [why teenagers should still learn to code in 2026](/blog/is-coding-worth-learning-2026).

The practical side

## Wisbech to Sawston with no one on the road

The county stretches a long way across the fens, and bus routes thin out after school. Online lessons avoid the question.

### Learning at home

A bedroom in Chatteris, a kitchen in Cottenham, a study in Godmanchester. The teacher shares a screen and the learner writes the code.

### School words you know

Year groups, GCSE choices and A level subjects are named the way Cambridgeshire schools name them, in English throughout.

### First lesson free

A proper lesson with real work, then a straight answer about level and course. There is nothing to pay and no card to give.

### Matched classmates

Groups of five to ten learners who have reached the same point, from towns and countries far apart, at a sensible hour.

### Holidays by arrangement

Most learners have two lessons weekly and take the same holidays as their own school, whichever council or academy trust set them.

### A UK-time timetable

The clock in India, where lessons are taught from, is five and a half hours ahead of UK winter time and four and a half ahead of UK summer time, so every slot we offer is written in UK time to avoid any mix-up.

Why groups are built by level

Two cities at opposite ends and small fen towns in between mean few places have enough learners at one stage on one evening. Grouping by level puts a March learner and a Cambourne learner in the same class.

Fees

## Cambridgeshire fees

One price list for all of Cambridgeshire, and for every country but India.

First class**USD 0**

A full lesson of real work, ending with a recommended level and course.

Group tuition**USD 100**

About eight lessons a month in a group of five to ten learners at one level.

Private tuition**USD 150**

About eight lessons a month with a teacher and one learner.

Fees are charged in US dollars, the currency we use for every family outside India, and there is no separate pound price. Payment begins only after the free lesson has agreed a course and weekly slot; the pricing page covers pausing, missed lessons and changing between group and private teaching.

Request placement[Check availability](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20may%20we%20book%20a%20free%20lesson%20for%20a%20learner%20in%20Cambridgeshire%3F)Reviews

## Google reviews from families, word for word

Rated 4.9 across 547 Google reviews. These are real reviews, reproduced 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

Free placement class

## Request a free lesson

Send an age or school year and a line about what the learner enjoys. The first lesson might be a logic puzzle, a first Python prime checker, or the 512-word sieve on this page.

### Contact the team directly

WhatsApp or call [+91 91233 66161](tel:+919123366161), or email [contact@modernagecoders.com](mailto:contact@modernagecoders.com). This is Modern Age Coders' actual contact, an Indian number, and not an invented Cambridgeshire one.

[WhatsApp Modern Age Coders](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20may%20we%20book%20a%20free%20lesson%20for%20a%20learner%20in%20Cambridgeshire%3F)

Submitted details are used for placement and follow-up.

FAQ

## Cambridgeshire questions

On the county, the EDSAC project and the lessons.

### How many people live in Cambridgeshire?

Peterborough and the five Cambridgeshire districts held 894,519 usual residents at the 2021 Census, from ONS data on Nomis. Peterborough was the largest council at 215,671 and East Cambridgeshire the smallest at 87,762.

### Is Peterborough bigger than Cambridge?

Yes, on both measures. The Peterborough built-up area had 190,605 residents and the Cambridge built-up area 152,740. Peterborough's council area is larger still, because it includes surrounding villages.

### What is the EDSAC prime project?

Learners list the primes below 10,000 by trial division, by the sieve of Eratosthenes and by a segmented sieve, count the steps, and compare memory use with EDSAC's 512 words. The segmented sieve needs only 281 words at once.

### What was EDSAC?

An early stored-program computer at the Cambridge University Mathematical Laboratory. The National Museum of Computing says it ran its first successful program on 6th May 1949, had 18 operation codes and 512 words of memory at first, and executed about 650 instructions a second.

### Why is the sieve faster than trial division?

The sieve crosses out multiples instead of dividing. For the primes below 10,000 it needs 16,979 crossings-out against 43,752 divisions, but it needs a mark for every number, which is where the memory trade comes in.

### Is there a classroom in Cambridge or Peterborough?

No. Lessons are live online only, so a learner in Littleport and one in St Neots share a class without travelling.

### What ages do you teach?

The range runs from six-year-olds to learners of sixty-seven. Little ones begin with puzzles and Scratch; somewhere near ten most move on to typed Python; teenagers take up Java and algorithms; adults usually want Python, data or AI. Level is decided in the free lesson.

### Do you teach Java to teenagers?

Yes. The teen Java course, for ages 13 to 18, covers core Java, JavaFX apps, games, Minecraft mods, data structures and an introduction to Spring Boot.

### What are the fees?

There is no charge for the opening lesson. Monthly fees afterwards are USD 100 for a seat in a group and USD 150 for one-to-one teaching; there is no registration charge and no fixed term.

### When are Cambridgeshire school holidays?

Cambridgeshire County Council, Peterborough and academies can each set dates. The county page we tried was not found when we checked, so we fit lesson breaks around your own school's calendar.

More of the UK

## Beyond Cambridgeshire

City pages for [Cambridge](/best-coding-class-in-cambridge), [Peterborough](/best-coding-class-in-peterborough) and [Ely](/best-coding-class-in-ely) each have a different project. Other counties include [Oxfordshire](/coding-classes-in-oxfordshire) and [Essex](/coding-classes-in-essex), and the [UK hub](/coding-classes-in-united-kingdom) has the rest.

Book the free class[Message our team](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20may%20we%20book%20a%20free%20lesson%20for%20a%20learner%20in%20Cambridgeshire%3F)Free Cambridgeshire class[Call +91 91233 66161](tel:+919123366161)

## Keep exploring Modern Age Coders

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### Free resources

- [Python Tutorial for Beginners: Complete Guide](/resources/python)
- [Loops (for, while, for...of, for...in)](/resources/javascript/loops-in-javascript)
- [Taking Input and Type Conversion](/resources/python/taking-input-and-type-conversion)
- [Conditional Statements in Python (if, elif, else)](/resources/python/conditional-statements)

### From the blog

- [Star Pattern Programs in Python: 30 Patterns With Code](/blog/star-pattern-programs-in-python)
- [How to Find HCF and LCM in Python (5 Easy Methods)](/blog/how-to-find-hcf-and-lcm-in-python)
- [Java Constructors Explained: Types, Overloading, ICSE](/blog/java-constructors-explained)

### Start here

- [What Modern Age Coders families say](/love)
- [Book a free demo class with Modern Age Coders](/book-demo)

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