--- title: "Coding Classes in Monmouthshire | Live Online, Ages 6 to 67" description: "Live online coding, Python and maths classes across Monmouthshire, from Abergavenny, Chepstow and Monmouth to Caldicot, Magor, Usk, Gilwern and Llanfoist." canonical: https://learn.modernagecoders.com/coding-classes-in-monmouthshire source: src/pages/coding-classes-in-monmouthshire.html --- > Live online coding, Python and maths classes across Monmouthshire, from Abergavenny, Chepstow and Monmouth to Caldicot, Magor, Usk, Gilwern and Llanfoist. Skip to contentCourses for Monmouthshire ## Starting points around Monmouthshire A Year 1 pupil in Usk who loves binoculars, a Year 6 in Caldicot ready to type code, a Year 11 in Abergavenny preparing for WJEC GCSE maths, and an adult in Chepstow teaching themselves Python. Each begins with a free lesson. [![Coding for Kids course thumbnail](/images/kids-coding.webp)Ages 6 to 12Coding for KidsBlock coding with light, lenses and spotting games.See the syllabus](/courses/kids-coding-blocks-masterclass)[![Maths Through Coding course thumbnail](/images/maths-through-coding.webp)Ages 10 to 15Maths Through CodingAngles, tiny numbers and unit conversion, made clear by coding.See the syllabus](/courses/maths-through-coding)[![High School Mathematics course thumbnail](/images/high-school-maths.webp)Ages 14 to 18High School MathematicsSecondary maths in depth, from radians to standard form and physics formulas.See the syllabus](/courses/complete-high-school-mathematics-mastery)[![Python Masterclass course thumbnail](/images/python-college.webp)AdultsPython MasterclassPython for adults from zero, up to science and engineering scripts.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)Monmouthshire in figures ## 92,957 people in Monmouthshire ONS counted 92,957 usual residents in Monmouthshire on census day 2021, read here through Nomis. Town figures below are ONS built-up areas, counted on that same day. | Town | People | Town | People | | --- | --- | --- | --- | | Abergavenny | 13,695 | Undy and Magor | 5,740 | | Chepstow | 11,935 | Usk | 2,310 | | Monmouth | 10,325 | Gilwern | 2,185 | | Caldicot | 9,815 | Llanfoist | 2,005 | Each figure matches our own output-area total to within six people. Monmouthshire's schools teach the Curriculum for Wales, and exam classes follow WJEC GCSE and A level courses. Monmouthshire County Council sets the holidays; we have not read its calendar, so each family tells us its own dates. ### Newport and WJEC exams The city of [Newport](/best-coding-class-in-newport-wales) has its own page. For exam support, see [GCSE Maths and Numeracy in Wales](/gcse-maths-and-numeracy-wales-help) and [WJEC GCSE Computer Science](/wjec-gcse-computer-science-help-wales). The Monmouthshire project ## How fine can a lens see? One formula for light spreading through an opening, and one number for shimmering air. Light passing through any circular opening spreads a little, which blurs every point into a tiny disc. The smallest angle a lens can separate, its angular resolution at the diffraction limit, is about 1.22 times the wavelength divided by the opening's width. Green light has a wavelength of about 550 billionths of a metre. The learner codes the formula, converts the angle from radians into arcseconds, the astronomer's unit where 3,600 make a degree, and multiplies by distance to find the smallest detail that could be seen. The distances and telescope sizes are our own choices; the record does not say what the club's telescope was. | Opening | Finest angle | Smallest detail at 5 km | At 10 km | | --- | --- | --- | --- | | Eye pupil, 5 mm | 27.7 arcsec | 0.67 m | 1.34 m | | Telescope, 3 cm | 4.6 arcsec | 11 cm | 22 cm | | Telescope, 5 cm | 2.8 arcsec | 7 cm | 13 cm | | Telescope, 10 cm | 1.4 arcsec | 3 cm | 7 cm | Doubling the width of the lens halves the finest angle, so a 10 centimetre telescope could in principle pick out detail about twenty times finer than the pupil of an eye. Real eyes do worse than their pupil suggests, typically about a minute of arc, because of the retina behind them. But the telescope has a limit too: the air. Warm and cool pockets bend light slightly and set a shimmer that astronomers call seeing. On a good night that is about one arcsecond, and along the ground on a sunny day it is usually worse. One arcsecond at 10 kilometres is about 5 centimetres. So which limit wins? The learner finds the crossover by setting the diffraction limit equal to one arcsecond: an opening of about 14 centimetres. For any telescope smaller than that, the lens is the bottleneck; for anything bigger, the air is. A classic slip also appears: forgetting to convert arcseconds to radians. Treat one arcsecond as one radian and the program claims the smallest visible detail at 10 kilometres is 10 kilometres wide, an answer so wrong it is easy to catch, if someone checks. ### Ages 8 to 11 Test how far away two dots can be told apart by eye, then draw the experiment in Scratch. ### Ages 11 to 15 Code the diffraction formula in Python and print the smallest detail for different lenses and distances. ### Ages 15 and up Add atmospheric seeing, find the crossover aperture, and write a test that catches the arcsecond-radian slip. ### A real tower, a model telescope The Roundhouse history comes from Cadw's record. The telescope sizes, distances and seeing figure are our assumptions, so the table shows the physics of any hilltop view rather than what the Kymin Club actually saw. Why the Kymin ## A roundhouse built for a view What Cadw's record says. | Record detail | What it says | | --- | --- | | Built | 1794, by the Kymin Club as a picnic house | | Site | The highest point of The Kymin, chosen for its views | | Visitors | Nelson and the Hamiltons breakfasted there in 1802 | | Windows | Supposedly aligned on objects in the view | | Roof | Flat, once carrying a telescope for the members | | Ownership | Given to the National Trust in 1902 | Resolution limits decide what phone cameras, microscopes, satellites and self-driving cars can see, and engineers balance lens size, sensor size and atmospheric effects in software every day. The same one-line formula explains why telescopes keep getting larger and why the largest ones need systems to correct for the air. A Monmouthshire student who has found the crossover between lens and air understands a real design trade-off. We have no connection with Cadw, the National Trust or Monmouthshire County Council. The record belongs to Cadw; the resolution sums and any errors belong to us. Learning path ## From spotting games to optics The year bands are rough guides; the trial lesson places each learner. Years 1 to 4 ### Looking closely Block coding with zooming, spotting and simple light games. [Coding for Kids](/courses/kids-coding-blocks-masterclass)[Scratch Coding for Kids](/courses/scratch-programming-complete-course)Years 5 to 8 ### Angles and units Typed Python converting angles and working with tiny numbers. [Maths Through Coding](/courses/maths-through-coding)[Python and AI for Kids](/courses/python-ai-kids-masterclass)Years 9 to 13 ### Physics formulas Waves, optics and standard form alongside WJEC GCSE and A level courses. [High School Mathematics](/courses/complete-high-school-mathematics-mastery)[Python for Teens](/courses/python-complete-masterclass-teens)Adults ### Science in Python Python for adults, from quick calculations to reusable tools. [Python Masterclass](/courses/python-programming-masterclass-zero-to-advanced-college)[Data Analysis Course](/courses/data-analysis-mastery-course-college)AI and limits ## An AI can quote a resolution formula in seconds. Will it tell you the air wins? The formula is only half the answer; knowing which limit applies is the other half. Ask a chatbot how much detail a big telescope can see and it may apply the diffraction formula alone, promising impossibly fine detail along the ground. The shimmer of the air, which dominates beyond a modest lens size, is easily left out. A Monmouthshire learner who has compared the two limits knows to ask which one actually applies. That is the kind of question that keeps AI answers honest. Spotting the missing limit in a confident answer is a skill a Monmouthshire teenager builds by coding the sums. The longer argument is in [why teenagers should still learn to code in 2026](/blog/is-coding-worth-learning-2026). How lessons run ## From Usk to Caldicot, lessons at home Every town and village in the county joins by video. ### Pupils write the code Every line on screen is typed by the learner; the teacher watches the shared window and steps in only when stuck. ### Welsh years and WJEC We place a Magor Year 5 or a Monmouth Year 12 using Welsh school years and Curriculum for Wales progression steps, and name exams as WJEC does. Lessons are in English. ### A free trial One whole lesson at no cost, then straight advice. ### Level-matched groups Five to ten learners at one level, from many places. ### Term-time lessons Two lessons a week during term; holidays off. ### Steady UK time When British clocks go forward or back, your slot stays put on the local clock and our teachers shift instead. Why groups span towns Five learners at one level, free at the same time, rarely live in one Monmouthshire town. Grouping by level gives a pupil in Gilwern or Llanfoist a class that fits. Fees ## Fees in Monmouthshire Chepstow or Abergavenny, the fee is the same, as in every country we teach outside India. First class**USD 0** A complete free lesson, followed by a recommendation. Group tuition**USD 100** About eight lessons a month in a group of five to ten. Private tuition**USD 150** About eight lessons a month with your own teacher. We charge in US dollars only; no sterling prices. Nothing is billed until the trial has settled a course and a weekly slot; holidays, missed sessions and changes of format are explained on the pricing page. Request placement[Check availability](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20we%20are%20in%20Monmouthshire%20and%20would%20like%20to%20book%20a%20free%20lesson%2C%20please.)Reviews ## Ratings from families 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 Monmouthshire lesson Send the learner's age or school year and a favourite interest. The trial could be a Scratch spotting game, a Python calculator, or the Kymin telescope sums. ### 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 Monmouthshire one. [WhatsApp Modern Age Coders](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20we%20are%20in%20Monmouthshire%20and%20would%20like%20to%20book%20a%20free%20lesson%2C%20please.) Submitted details are used for placement and follow-up. FAQ ## Monmouthshire questions The county, the Kymin project and practical details. ### How many people live in Monmouthshire? The 2021 census counted 92,957 usual residents in Monmouthshire. ### What are the largest towns in Monmouthshire? ONS 2021 built-up areas: Abergavenny 13,695, Chepstow 11,935, Monmouth 10,325 and Caldicot 9,815. ### What is the Kymin project? Learners compute the diffraction limit of an eye and of small telescopes in Python, compare it with the shimmer of the air, and find that above about a 14 cm lens the air sets the limit. ### What is the diffraction limit? The finest angle a lens or opening can separate, about 1.22 times the wavelength of light divided by the opening's width. ### When was the Kymin Roundhouse built? In 1794, by the Kymin Club, according to Cadw, which lists it at Grade II*. ### Are lessons held in Monmouthshire? No classroom to travel to: every session happens by video, from a kitchen table in Usk or a bedroom in Chepstow. ### Do you teach GCSE maths in Wales? Yes, and WJEC GCSE Computer Science too. Our aim is secure understanding; no tutor can honestly guarantee a grade, and we do not. ### What ages can learn? Any learner between 6 and 67: picture blocks for young children, typed Python for grown-ups. ### How much are lessons? Nothing for the opening lesson; after it, a group place costs USD 100 each month and a private teacher USD 150. ### Do lessons stop in the school holidays? Yes. Send us the holiday weeks for your school and those weeks stay empty. Nearby pages ## More South East Wales pages [Newport](/best-coding-class-in-newport-wales) and [Cardiff](/best-coding-class-in-cardiff) have city pages, and [Blaenau Gwent](/coding-classes-in-blaenau-gwent) explains why cameras flatten a round street. Our [Wales](/coding-and-ai-classes-in-wales) index gathers every Welsh county page so far, and the [UK hub](/coding-classes-in-united-kingdom) reaches England, Scotland and Northern Ireland. Book the free class[Message us on WhatsApp](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20we%20are%20in%20Monmouthshire%20and%20would%20like%20to%20book%20a%20free%20lesson%2C%20please.)Free Monmouthshire class[Call +91 91233 66161](tel:+919123366161) ## Keep exploring Modern Age Coders ### Coding classes in nearby places - [Coding Classes in Moray](/coding-classes-in-moray) - [Coding Classes in Midlothian](/coding-classes-in-midlothian) - [Coding Classes in the Western Isles](/coding-classes-in-na-h-eileanan-siar) - [Coding Classes in Middelburg](/coding-classes-in-middelburg) - [Coding Classes in Nakhal](/coding-classes-in-nakhal) - [Coding Classes in Mid Ulster](/coding-classes-in-mid-ulster) - [Coding Classes in Amsterdam-Zuid](/coding-classes-in-amsterdam-zuid) - [Coding Classes in Amsterdam-West](/coding-classes-in-amsterdam-west) - [Coding Classes in Amsterdam-Oost](/coding-classes-in-amsterdam-oost) - [Coding Classes in Capelle aan den IJssel](/coding-classes-in-capelle-aan-den-ijssel) ### Free resources - [C++ Tutorial: From Basics to Advanced](/resources/cpp) - [Large Language Models](/resources/ai-and-machine-learning/large-language-models) - [Pointers and References](/resources/cpp/pointers-in-cpp) - [Recurrent Neural Networks (RNN) and LSTM](/resources/ai-and-machine-learning/recurrent-neural-networks) ### From the blog - [What is Floor Division in Python? Complete Guide with Examples](/blog/what-is-floor-division-in-python) - [Leap Year Program in Python: Logic, Code and Output](/blog/how-to-write-a-leap-year-program-in-python) - [File Built-in Methods in Python: Complete Guide for Beginners](/blog/file-built-in-methods-python-guide) ### Start here - [Book a free demo class with Modern Age Coders](/book-demo) - [Real projects built by Modern Age Coders students](/student-labs) --- *Canonical: https://learn.modernagecoders.com/coding-classes-in-monmouthshire*