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Ballymena, Mid and East Antrim, Northern Ireland

Online coding and Python classes in Ballymena

Which are the best online coding and Python classes in Ballymena?

Census 2021 recorded 31,205 usual residents in the Ballymena settlement, according to NISRA, part of Mid and East Antrim with its 138,994 people. Galgorm, Ballee and Harryville, Ballykeel, Ardeevin, Fair Green and Kirkinriola are among the electoral wards listed for the BT42 and BT43 districts. Anyone aged six to 67 can study coding, Python, AI, vibe coding and maths on camera with an India-based tutor, alone or in a small class of five to ten matched by level. We teach problem solving before tools, so a learner can tell a good-enough answer from an optimal one. The opening lesson costs nothing, and we close it by naming the course we would choose. The Ballymena project sets a coverage puzzle on 11,552 mapped buildings, solves it with a quick greedy rule and with an exact integer programming solver in Python, and measures the gap. Carrying on after the trial costs USD 100 a month in a class or USD 150 a month one-to-one.

Many real decisions are puzzles of the form "pick the fewest things that still cover everything": sites for bins or chargers, shifts that cover every hour, tests that check every feature. The fast way is a greedy rule, grabbing whatever covers the most right now. It is quick, but is it any good? Integer programming answers that. A solver searches for the true minimum, and a clever trick called the LP relaxation proves how low the answer could possibly go. This project poses one such puzzle on Ballymena as mapped on OpenStreetMap: choose the fewest street junctions so that every building lies within 400 m of one.

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Facts last verified 29 September 2026. Teaching is online; no Ballymena branch is claimed.

Ballymena course picks

Ballymena courses in problem solving, Python and AI

Four ways in, by age. Whichever you pick, the first live lesson is free and we take no card details.

Problem Solving and Computational Thinking for Kids course thumbnail
Ages 7 to 12

Problem Solving and Computational Thinking for Kids

The how-to-think course: covering puzzles, quick guesses and proving an answer cannot be beaten.

See the syllabus
 Vibe Coding for Kids course thumbnail
Ages 8 to 12

Vibe Coding for Kids

Scratch games planned by the learner, built with an AI and properly tested.

See the syllabus
 Python for Teens course thumbnail
Ages 13 to 17

Python for Teens

Python from first steps to optimisation, including the Ballymena coverage puzzle.

See the syllabus
 Python Masterclass course thumbnail
Students and adults

Python Masterclass

Python for data, optimisation, automation and AI agents.

See the syllabus

Browse the course atlas for more than one hundred options and use the 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
Vibe codingAges 13 to 17

Vibe Coding for Teens

Python, web and AI projects where the learner still owns the thinking.

See the syllabus
 Python Automation Course course thumbnail
Python and AICollege and adult

Python Automation Course

Automate the work you already do, then let AI carry part of it.

See the syllabus
 AI and Machine Learning for Teens course thumbnail
AI and MLAges 14 to 18

AI and Machine Learning for Teens

Train a model, read what it learned, and be able to say why it is wrong.

See the syllabus
 Codex & Claude Code course thumbnail
Agentic codingProfessionals

Codex & Claude Code

Run AI coding agents on real work without losing control of the codebase.

See the syllabus
Ballymena and Mid and East Antrim

Ballymena, Galgorm, Harryville and Ballykeel

Census 2021 counts from NISRA, quoted exactly and never summed.

Ballymena in Census 2021, usual residents (NISRA MS-A01)
AreaType of areaUsual residents
BallymenaSettlement31,205
BallymenaDistrict electoral area24,295
Mid and East AntrimCouncil area138,994

The settlement and the district electoral area of the same name cover different ground, so their totals differ, and NISRA marks settlement figures as approximations. Postcodes.io lists Academy, Ardeevin, Ballee and Harryville, Ballykeel, Braidwater, Castle Demesne, Fair Green, Galgorm, Kirkinriola and Park among the electoral wards of BT42 and BT43, districts that also take in Ahoghill, Broughshane and Cullybackey. Lessons follow the Northern Ireland Curriculum from P1 to Year 14, with CCEA GCSE and A level support in Digital Technology, Computer Science and Maths; send the holiday dates and we will work round them.

Mid and East Antrim and Northern Ireland

See coding classes in Mid and East Antrim and the Northern Ireland page. Why we teach problem solving before tools is on learn to think, not just use AI tools.

The Ballymena project

Greedy against exact: an integer programming puzzle on Ballymena's map

Fewest junctions, every building within 400 m, three ways to answer, and a proof of how good an answer can be.

The learner downloads OpenStreetMap data over Ballymena and finds 2,473 street junctions where three or more roads meet, and 11,552 buildings. For each building Python lists every junction within 400 m in a straight line; 11,534 buildings have at least one, and the 18 that do not are set aside. The puzzle is a classic called set cover: choose as few junctions as possible so that every remaining building has a chosen junction within 400 m. It is a thought experiment about coverage, the same shape as siting bins or chargers, not a plan for anything real.

Three ways to solve the Ballymena coverage puzzle, our Python run on OpenStreetMap data
MethodJunctions neededWhat it tells you
Greedy rule69A good answer in about a second
LP relaxation (HiGHS)48.27No answer can use fewer than 49
Integer programming (scipy milp, 10-minute limit)50Smallest cover found; the true minimum is 49 or 50

The greedy rule, always taking the junction that covers the most still-uncovered buildings, finishes almost instantly with 69. The solver, scipy's milp using the HiGHS engine, searches much harder and finds a cover of 50. The LP relaxation, the same problem with the rule "each junction is fully chosen or not" loosened to allow fractions, has a smallest total of 48.27, and since a real answer must be a whole number of junctions, nothing below 49 is possible. So the greedy answer uses 19 or 20 more junctions than necessary, roughly 40% extra, and we can say that with certainty without ever finding the exact optimum.

P5 to P7

Place counters on a grid so every square is next to one, first quickly, then with the fewest you can manage.

Years 8 to 10

Write the greedy rule in Python for a small patch of Ballymena and count the junctions it picks.

Years 11 and up

Set up the integer program with scipy, solve it, and use the LP relaxation to prove a lower bound.

OpenStreetMap data, our puzzle

Buildings and streets are from OpenStreetMap and its contributors under the Open Database Licence. The junction list, distances, puzzle and every result are our own work; straight-line distances ignore walls, rivers and roads.

Answers and AI

What this teaches about vibe coding and AI agents

Speed is worth having only when you also know the size of the shortfall.

From the Ballymena coverage puzzle to working with AI
In the optimisation projectWhen AI solves a problem for you
Greedy gave 69 in a secondQuick heuristics are often what an AI writes
The solver found 50A better method can cut the cost a lot
The relaxation proved at least 49Bounds tell you how good an answer is
The exact optimum stayed unprovenSome certainty is enough to decide
18 buildings could not be coveredCheck which cases a method silently drops

Ask an AI assistant for code to "pick the fewest locations" and you will very often get a greedy loop, which runs and looks convincing. In vibe coding the learner describes the program and the AI writes it; our Ballymena learners then ask how far the answer could be from the optimum, and compute a bound to find out. AI agents that make choices with real costs, scheduling people or placing resources, should report that kind of gap too. Agent building comes after a learner can write Python without support, commonly in the sixth form or as an adult, and Copilot Studio agents are kept to private lessons. The pathway is described on agents for UK students; the thinking behind it on understand the code, don't copy-paste.

The data behind this page is open data from OpenStreetMap, NISRA and postcodes.io, none of whom is linked to us; the puzzle, the code and any slip are Modern Age Coders' own.

Stages

From counter puzzles to integer programs

A school year gives a starting guess; the free lesson pins it down.

P1 to P7

How to think

Covering puzzles, quick guesses and checking for better.

Problem Solving and Computational Thinking for KidsScratch Coding for Kids
P5 to Year 9

Vibe coding for kids

Games and small apps planned by the learner and built with AI help.

Vibe Coding for KidsPython and AI for Kids
Years 10 to 14

Python and optimisation

Algorithms, solvers and bounds beside CCEA GCSE and A level.

Python for TeensData Structures & Algorithms Course
Adults

Python for real decisions

Optimisation, data and AI agents in Python.

Python MasterclassGenerative AI Course
Python and optimisation

What is integer programming, and how can Python tell you how good a greedy answer is?

Integer programming finds optimal whole-number choices under constraints, and its LP relaxation, the same problem with fractions allowed, gives a lower bound that shows how far any quick greedy answer could be from the optimum.

On a coverage puzzle over 11,552 mapped Ballymena buildings, a greedy rule needed 69 junctions, an integer programming solver in Python found 50, and the LP relaxation proved that no answer could use fewer than 49.

Learners who have solved it ask of any AI-written heuristic: how far from optimal could this be, and can we bound it?

Knowing how to check a quick answer keeps Ballymena teenagers in charge of AI-written code, a solid reason to learn Python in 2026. The longer argument is in why teenagers should still learn to code in 2026.

How it works

Galgorm to Harryville, online

Any computer with a webcam and a connection good enough for video will do.

Learner at the keyboard

Every line and prompt is typed by the student, and the tutor, watching on screen share, keeps asking whether a cheaper answer exists.

Where to begin

Worked out in the trial, and any CCEA exam goes straight into the plan.

Taster at no cost

We teach a full opening session for free and recommend a course afterwards.

Classes by ability

A group means five to ten learners working at one level, from all over the UK.

Twice a week

Paused for school holidays.

Steady time

Our tutors adjust for UK clock changes, so your slot stays the same.

Why online

Five learners at one level, free on the same evening and living near each other, are hard to find. Online, they need not be neighbours.

Fees

Ballymena fees

Ballymena learners pay our international prices, the rates for every country except India.

First classUSD 0

One whole lesson free, then our advice.

Group tuitionUSD 100

Roughly eight live group lessons each month.

Private tuitionUSD 150

Roughly eight live private lessons each month.

Ballymena families pay in US dollars, with no sterling list, from the point the trial has agreed a course and a time. Holiday breaks, missed sessions and format swaps are all laid out on the pricing page.

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Reviews

Antrim families and learners elsewhere in the UK, reviewing us on Google

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

Book a free Ballymena lesson

Share the learner's age or school year and a favourite interest. The trial might be a counter-covering puzzle, a Scratch game built with an AI, early Python, or a small optimisation on real map data.

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FAQ

Ballymena questions

Solvers, bounds, the Ballymena puzzle, vibe coding and lesson arrangements.

What is the population of Ballymena?

NISRA counted 31,205 usual residents in the Ballymena settlement at the 2021 census.

Are online Python classes available in Ballymena?

Classes run over live video, so learners aged 6 to 67 in Ahoghill, Broughshane or anywhere else in Mid and East Antrim can join.

What is the set cover problem?

Choosing the smallest collection of options that together cover every item. In our Ballymena puzzle the options are junctions and the items are buildings within 400 m.

What is an LP relaxation?

The same optimisation with whole-number choices loosened to fractions. It is quick to solve and gives a bound: here 48.27, so no cover can use fewer than 49 junctions.

What does the Ballymena project involve?

Setting a coverage puzzle on OpenStreetMap buildings and junctions, then solving it greedily, exactly with scipy's milp solver, and by LP relaxation to measure the gap.

Is vibe coding taught?

Yes, at every age; learners describe the program, then test and correct what the AI writes.

When do learners build AI agents?

When a learner can build small Python tools unaided, typically sixth-form age or older; Copilot Studio is private-only.

Do you support CCEA GCSE and A level?

Yes, in Digital Technology, Computer Science and Maths, taught for understanding without promised grades.

How much are the classes?

We charge nothing for the taster. Regular classes are USD 100 per month grouped, or USD 150 per month individually.

Do lessons pause in the holidays?

They stop for school holidays; share the dates and we plan round them.

Nearby

More Northern Ireland pages

Pages with projects of their own: Mid and East Antrim (growth rates in an old gasworks record), Antrim and Newtownabbey, Belfast and Newtownards. Everywhere else is on the Northern Ireland page or the UK hub.

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