--- title: "Coding Classes in Denbighshire | Live Online, Ages 6 to 67" description: "Live online coding, Python and maths classes across Denbighshire, from Rhyl and Prestatyn to Denbigh, Ruthin, Llangollen, Rhuddlan, Dyserth and Corwen." canonical: https://learn.modernagecoders.com/coding-classes-in-denbighshire source: src/pages/coding-classes-in-denbighshire.html --- > Live online coding, Python and maths classes across Denbighshire, from Rhyl and Prestatyn to Denbigh, Ruthin, Llangollen, Rhuddlan, Dyserth and Corwen. Skip to contentCourses for Denbighshire ## Usual first courses in Denbighshire A Year 1 pupil in Prestatyn who loves drawing circles, a Year 6 in Rhyl ready to type code, a Year 11 in Ruthin preparing for WJEC GCSE maths, and an adult in Denbigh learning Python for work. A free lesson starts each of them. [![Coding for Kids course thumbnail](/images/kids-coding.webp)Ages 6 to 12Coding for KidsBlock coding with arcs, circles and turning a set amount.See the syllabus](/courses/kids-coding-blocks-masterclass)[![Maths Through Coding course thumbnail](/images/maths-through-coding.webp)Ages 10 to 15Maths Through CodingRadians, arcs and chords, understood by drawing them in code.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 circle theorems to trigonometry and powers.See the syllabus](/courses/complete-high-school-mathematics-mastery)[![Python Masterclass course thumbnail](/images/python-college.webp)AdultsPython MasterclassPython for adults from the first line, up to geometry and data 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)Denbighshire in figures ## 95,817 people in Denbighshire This total is the 2021 census count of usual residents, published by ONS and read via Nomis. The places listed are ONS built-up areas from the same census. | Built-up area | Residents | Built-up area | Residents | | --- | --- | --- | --- | | Rhyl | 26,990 | St Asaph | 3,485 | | Prestatyn | 16,675 | Llangollen | 3,050 | | Denbigh | 8,075 | Dyserth | 2,040 | | Ruthin | 5,700 | Meliden | 2,000 | | Rhuddlan | 3,790 | | | Output-area sums we ran ourselves agree with each published figure to within about ten people. Pupils follow the Curriculum for Wales and take WJEC GCSEs and A levels. Denbighshire County Council sets term dates; rather than guess them, we ask each family for its own holiday weeks. ### St Asaph and WJEC help The city of [St Asaph](/best-coding-class-in-st-asaph) has its own page. For exams, see [GCSE Maths and Numeracy in Wales](/gcse-maths-and-numeracy-wales-help) and [WJEC GCSE Digital Technology](/wjec-gcse-digital-technology-help-wales). The Denbighshire project ## Radius 54 metres, crest 140.2 metres Arc, chord and sagitta, then the weir equation. The record gives a radius of about 54 metres and a crest length of 140.2 metres. If the crest is an arc of a circle, its angle in radians is simply the arc length divided by the radius: 140.2 over 54 is about 2.596 radians, or 148.8 degrees, well short of a full semicircle, which fits the record's description of a near-crescent. From the angle the learner computes the chord, the straight line between the two ends, which is roughly the width of river the weir spans, and the sagitta, how far the curve bulges upstream from that line. | Quantity | Value | How it is found | | --- | --- | --- | | Angle at the centre | 2.596 radians, 148.8 degrees | Arc length divided by radius | | Chord across the ends | About 104.0 m | 2 x radius x sine of half the angle | | Depth of the curve (sagitta) | About 39.5 m | Radius x (1 minus cosine of half the angle) | | Crest longer than the chord by | 35 per cent | 140.2 divided by 104.0 | Why curve it? Water flowing over a weir obeys a power law: the flow grows with the crest length times the height of water above the crest raised to the power one and a half. Turn that around and, for the same flow, the water above a longer crest stands lower. The learner inverts the formula in Python: with a crest 35 per cent longer than a straight one across the same river, the water over the crest stands 18 per cent lower, at every flow. The flows and weir constant in our example are invented, but the 18 per cent depends only on the ratio of lengths, which comes from the record. One more property of power laws appears: doubling the flow does not double the height over the crest; it multiplies it by two to the power two thirds, about 1.59. The learner checks every step with a known case, a crest that is a full semicircle, where the chord must equal twice the radius exactly. ### Ages 8 to 11 Bend a strip of card into curves of different depths between two fixed pins and measure how its length changes. ### Ages 11 to 15 Use radians in Python to find the angle, chord and depth of an arc from its radius and length. ### Ages 15 and up Invert the weir equation, show the head ratio depends only on lengths, and test with the semicircle case. ### Record figures, modelled flow The radius, crest length and history come from Cadw's record. Treating the crest as a perfect circular arc is our simplification, and the flows and weir constant are invented, so the head values illustrate the idea rather than describe the real weir. Why Horseshoe Falls ## A weir that feeds a canal What Cadw's record describes. | Record detail | What it says | | --- | --- | | Purpose | To impound the Dee and feed water, via sluices, into the head of the Llangollen branch of the canal | | Engineers | Promoted by William Jessop in 1795; built under Thomas Telford from 1804 to 1806 | | Shape | A near-crescent weir of approximately 54 m radius | | Crest | 140.2 m long, 1.2 m square stones capped with bullnosed cast iron in 2.75 m lengths | | Control | River levels managed at a distance by sluices at Llyn Tegid | | Community | Llantysilio, partly in Llangollen | Arcs, chords and power laws appear throughout engineering and computing: in road and rail curves, in lens design, in the curves drawn on every screen and in flood-modelling software that decides how rivers behave. Inverting a formula to ask what it implies, rather than just plugging in numbers, is the step that turns calculation into design. A Denbighshire student who has found the 18 per cent from two numbers in a record has taken that step. We have no connection with Cadw or Denbighshire County Council. The record's content is Cadw's; the geometry, the model and any errors are ours. Learning path ## From card strips to power laws The year bands are rough; the trial lesson sets the level. Years 1 to 4 ### Curves and turns Block coding drawing arcs, circles and turning shapes. [Coding for Kids](/courses/kids-coding-blocks-masterclass)[Scratch Coding for Kids](/courses/scratch-programming-complete-course)Years 5 to 8 ### Angles in Python Typed Python with degrees, radians and simple geometry. [Maths Through Coding](/courses/maths-through-coding)[Python and AI for Kids](/courses/python-ai-kids-masterclass)Years 9 to 13 ### Trigonometry and powers Circle geometry, trigonometry and power laws alongside WJEC GCSE and A level maths. [High School Mathematics](/courses/complete-high-school-mathematics-mastery)[Python for Teens](/courses/python-complete-masterclass-teens)Adults ### Geometry in code Python for adults, from measurements to engineering sums. [Python Masterclass](/courses/python-programming-masterclass-zero-to-advanced-college)[Data Analysis Course](/courses/data-analysis-mastery-course-college)AI and design ## An AI can quote a weir formula in seconds. Will it show why the curve helps? A formula used forwards answers a question; used backwards it explains a design. Ask a chatbot why Horseshoe Falls is curved and it may say it looks better or spreads the flow. Asked to prove it, it may not think to invert the weir equation or to compute the chord from the radius and crest length in the record. A Denbighshire learner who has turned two numbers into an 18 per cent lower water level knows how to test an explanation instead of repeating it. That is exactly the scrutiny AI answers need. Turning a design into numbers you can check is why a Denbighshire teenager should keep learning to code in 2026. The longer argument is in [why teenagers should still learn to code in 2026](/blog/is-coding-worth-learning-2026). How lessons run ## From Rhyl to Corwen, lessons at home Towns and villages across the county all join lessons by video. ### The learner types Pupils write the code; the teacher follows on the shared screen and prompts when stuck. ### Welsh school years A Dyserth Year 4 or a Llangollen Year 10 is placed by year and the Curriculum for Wales, with WJEC exam names. Lessons are in English. ### A free trial lesson One full lesson at no cost, then a candid recommendation. ### Five to ten per class Classmates share a level and join from many places. ### Term time schedule Two lessons a week in term; no lessons in the holidays. ### UK time held Your lesson keeps its UK time through the clock changes; teachers on India time shift. Why groups span the county Five learners at one level, free at the same hour, rarely live in one town. Grouping by level gives a pupil in Meliden or Corwen a class that fits. Fees ## Fees in Denbighshire Rhyl or Ruthin, the fee is the same, as everywhere we teach outside India. First class**USD 0** A full lesson, free, then a clear suggestion. 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 a teacher to yourself. We price in US dollars and keep no sterling list. Invoices start once the trial has fixed a course and a weekly time; the pricing page explains breaks, absences and changing format. Request placement[Check availability](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20we%20are%20in%20Denbighshire%20and%20would%20like%20to%20book%20a%20free%20lesson%2C%20please.)Reviews ## Families rate 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 Denbighshire lesson Tell us the age or school year and one thing the learner enjoys. The first lesson might be a Scratch circle, a Python program, or the Horseshoe Falls geometry. ### 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 Denbighshire one. [WhatsApp Modern Age Coders](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20we%20are%20in%20Denbighshire%20and%20would%20like%20to%20book%20a%20free%20lesson%2C%20please.) Submitted details are used for placement and follow-up. FAQ ## Denbighshire questions The county, the Horseshoe Falls project and practical details. ### How many people live in Denbighshire? The 2021 census counted 95,817 usual residents. ### What are the largest towns in Denbighshire? ONS 2021 built-up areas: Rhyl 26,990, Prestatyn 16,675, Denbigh 8,075 and Ruthin 5,700. ### What is the Horseshoe Falls project? Learners treat the 140.2 metre crest as an arc of radius 54 metres, compute its angle, chord and depth in Python, and invert the weir equation to show the curve keeps water over the crest about 18 per cent lower. ### What is a sagitta? The depth of an arc: the distance from the middle of the chord to the curve itself. ### Who built Horseshoe Falls? Cadw records that it was promoted by William Jessop in 1795 and built under Thomas Telford from 1804 to 1806. ### Are lessons held in Denbighshire? No; lessons happen on video, so pupils join from home anywhere in the county. ### Can you help with GCSE maths in Wales? Yes, along with WJEC GCSE Computer Science and Digital Technology. We aim for understanding and do not promise grades. ### What ages do you teach? Every age from six to 67, from blocks for children to Python for adults. ### How much are lessons? The trial lesson is free; afterwards USD 100 a month in a group or USD 150 a month one-to-one. ### Do lessons stop in the holidays? Yes. Tell us when your school breaks up and we pause. Nearby pages ## More North Wales pages [St Asaph](/best-coding-class-in-st-asaph) reads slopes from a height map, [Conwy](/coding-classes-in-conwy) compares iron boxes and bars, and [Wrexham](/best-coding-class-in-wrexham) has a city page. See the full Welsh list on our [Wales](/coding-and-ai-classes-in-wales) page, or the [UK hub](/coding-classes-in-united-kingdom) for everywhere else. Book the free class[Message us on WhatsApp](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20we%20are%20in%20Denbighshire%20and%20would%20like%20to%20book%20a%20free%20lesson%2C%20please.)Free Denbighshire class[Call +91 91233 66161](tel:+919123366161) ## Keep exploring Modern Age Coders ### Coding classes in nearby places - [Coding Classes in Derbyshire](/coding-classes-in-derbyshire) - [Coding Classes in Den Bosch](/coding-classes-in-den-bosch) - [Coding Classes in Deventer](/coding-classes-in-deventer) - [Coding Classes in Delft](/coding-classes-in-delft) - [Coding Classes in Devon](/coding-classes-in-devon) - [Coding Classes in Delfshaven, Rotterdam](/coding-classes-in-delfshaven) - [Coding Classes in East Ayrshire](/coding-classes-in-east-ayrshire) - [Coding Classes in Dumfries and Galloway](/coding-classes-in-dumfries-and-galloway) - [Coding Classes in West Yorkshire](/coding-classes-in-west-yorkshire) - [Coding Classes in Al Awabi](/coding-classes-in-al-awabi) - [Coding Classes in Manah](/coding-classes-in-manah) - [Coding Classes in Mid Ulster](/coding-classes-in-mid-ulster) ### Free resources - [Java Tutorial for Beginners to Advanced](/resources/java) - [Views, Stored Procedures, and Functions](/resources/sql/views-and-stored-procedures) - [Conditional Logic](/resources/sql/conditional-logic-case-when) - [Exception Handling in Java](/resources/java/exception-handling) ### From the blog - [Abacus vs Vedic vs Mental Maths: A Clear Comparison](/blog/abacus-vs-vedic-vs-mental-maths) - [How to Find HCF and LCM in Python (5 Easy Methods)](/blog/how-to-find-hcf-and-lcm-in-python) - [Best WhiteHat Jr Alternative in 2026](/blog/whitehat-jr-alternative) ### Start here - [About Modern Age Coders, teaching since 2020](/about) - [Modern Age Coders pricing, one honest price per plan](/pricing) --- *Canonical: https://learn.modernagecoders.com/coding-classes-in-denbighshire*