--- title: "Best Coding Classes in Derby | Modern Age Coders" description: "Live online coding, Python, AI and maths lessons for Derby learners aged 6 to 67, from Allestree and Mickleover to Chaddesden and Alvaston. First lesson free." canonical: https://learn.modernagecoders.com/best-coding-class-in-derby source: src/pages/best-coding-class-in-derby.html --- > Live online coding, Python, AI and maths lessons for Derby learners aged 6 to 67, from Allestree and Mickleover to Chaddesden and Alvaston. First lesson free. Skip to contentCourse picks for Derby ## Four courses for the city of making Choose from what already interests the learner. Every course begins with a free live lesson, booked without a card. [![Elementary Maths for Grades 1-5 course thumbnail](/images/elementary-maths.webp)Ages 6 to 11Elementary Maths for Grades 1-5Number, shape, time and money for primary years, including the clock and timetable skills that come before counting overlaps.See the syllabus](/courses/elementary-mathematics-complete-masterclass)[![Python for Teens course thumbnail](/images/python-teens.webp)Ages 13 to 18Python for TeensPython from a first line to full projects, with a real timetable file as an early taste of messy data.See the syllabus](/courses/python-complete-masterclass-teens)[![Competitive Programming for Teens course thumbnail](/images/competitive-programming-teens.webp)Ages 13 to 18Competitive Programming for TeensContest problems built on sorting, greedy methods and prefix sums, the toolkit that interval questions draw on.See the syllabus](/courses/competitive-programming-for-teens-course)[![Data Structures & Algorithms Course course thumbnail](/images/dsa-college.webp)University and adultData Structures & Algorithms CourseSorting, hashing, heaps and complexity at interview standard, where event-sorting problems are a staple.See the syllabus](/courses/data-structures-algorithms-masterclass-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)Derby today ## A family city, with more school-age children than the national share Census 2021 results for the Derby local authority, published by the Office for National Statistics through Nomis. | Measure | Derby | England | | --- | --- | --- | | Usual residents | 261,364 | Not compared | | In households | 256,961, 98.3% | Not compared | | In communal establishments | 4,403, 1.7% | Not compared | | Aged 5 to 9 | 16,899, 6.5% | 5.9% | | Aged 10 to 14 | 16,978, 6.5% | 6.0% | | Aged 20 to 24 | 18,528, 7.1% | 6.0% | | Schoolchildren and full-time students, of 246,144 aged five and over | 55,701, 22.6% | 20.4% | ### School-age children Children aged 5 to 9 and 10 to 14 each made up 6.5% of Derby's residents, above England's 5.9% and 6.0%. ### Almost all in homes Some 98.3% of residents lived in households, and only 1.7% in communal establishments such as halls or care homes. ### Students present In 2021, 22.6% of residents aged five and over were schoolchildren or full-time students, a little above England's 20.4%. For a coding school, that profile points to families. A Derby household might include a primary child in Littleover wanting to make a first game, a Year 8 student in Spondon weighing GCSE options and a parent in Oakwood who wants to understand what the children are learning, and each of them would join a group at their own level rather than their age. Making and the factory ## Three hundred years of making From Derby Museums and the Derwent Valley Mills World Heritage Site. ### 2001 UNESCO inscribed the Derwent Valley Mills and their surrounding landscape as a World Heritage Site that year, because the valley saw the birth of the factory system. ### 24 kilometres The site runs 24 kilometres from north to south, from the edge of Matlock Bath and Cromford almost to the centre of Derby. ### The first factory Derby Museums' Museum of Making tells the city's 300-year history of making, on what is widely regarded as the site of the world's first factory. Derby Museums also says it holds the world's largest collection of works by the painter Joseph Wright of Derby. We have no connection with Derby Museums or the World Heritage Site partnership. We mention them because a factory is, among many other things, a timing problem: machines, shifts and deliveries overlapping through the day. The project on this page is a modern version of the same question, with buses in place of spinning frames. Where the timetable comes from The Bus Open Data Service, built by the Department for Transport, provides timetable, vehicle location and fares data for every local bus service in England. It is free open data and needs no licence, which is why a learner in Derby can download exactly the file this project uses. Signature project ## The busiest minute on Derby's buses A sweep line turns thousands of time intervals into a single running count. We ran one over every scheduled bus trip inside Derby on Tuesday 22 September 2026. | Time | Trips under way | Note | | --- | --- | --- | | 06:00 | 20 | Early services | | 08:00 | 104 | Morning rise | | 08:14 | 109 | Peak, first reached | | 12:00 | 86 | Midday | | 17:00 | 92 | Evening rise | | 19:00 | 58 | Tailing off | | 22:00 | 20 | Late services | ### 1. Trips become intervals Each trip starts at its first timed stop inside the city boundary and ends at its last. On the day, 2,595 trips had at least two such stops. ### 2. Sort the moments Every start counts plus one and every end minus one. Sorting all 5,190 moments by time turns the whole question into one pass. ### 3. Sweep and keep count Walk through the sorted moments with a running total. Its highest value, 109, is the peak number of trips under way at once, first reached at 08:14. ### One minute, eight buses Every one of the 5,190 times in the Derby file falls on a whole minute, and at 661 different moments one trip ends exactly as another begins. Process the end first and those two never overlap: the peak is 109. Process the start first and the peak becomes 117. Neither rule is wrong, but a program that never states its rule can report either number, and nobody reading the answer will know which it chose. Two more details keep the answer honest. Some trips run past midnight, and the timetable writes their times as 24:10 or later rather than starting a new day; 21 of the Derby intervals end that way, and a program that reads 24:10 as a mistake loses them. And a trip is scheduled passenger service, not a count of every bus on the road: empty runs between routes are not in the timetable, so 109 describes buses in service, not the whole fleet. Counting overlaps ## Five habits for anything that overlaps in time Learned on bus trips, used afterwards on room bookings, exam timetables, parking spaces, server connections and any schedule where things run side by side. | Habit | What it looks like | What it prevents | | --- | --- | --- | | Define start and end | Say exactly which moment begins and which ends each interval | Two programs disagreeing about the same timetable | | State the tie rule | Decide whether an end and a start at the same instant overlap | A peak that jumps from 109 to 117 with no explanation | | Keep late times | Treat 24:10 as ten past midnight on the same service day | Late trips that vanish or appear to run backwards | | Sort, do not compare | Sort the moments once instead of checking every pair | Over 3.3 million checks where about 64,000 steps will do | | Say what is counted | Report scheduled trips in passenger service, not every bus on the road | A timetable count read as a live fleet figure | The fourth habit grows more important with every extra trip. Doubling the number of trips roughly quadruples the pairwise checks but only slightly more than doubles the sweep, which is the difference between a program that copes with one city and one that copes with a country. ### Younger learners A playground timeline of who is on the swings when, and the question of how many swings are ever needed at once. ### Teenagers The timetable file read in Python, trips turned into intervals, the sweep written, and both tie rules tested and explained. ### Adults Capacity and scheduling questions at work, from rooms and staff rotas to connections on a server, answered with a stated rule. We are not connected with the Department for Transport, the Bus Open Data Service, any bus operator, Derby Museums, the Derwent Valley Mills partnership or the Office for National Statistics. The timetable and boundary are published for public use; the intervals, counts and peaks are our own calculations. Learning ladder ## From a playground timeline to a sweep line Age is only a first guess at level; the free lesson finds the real one. Ages 6 to 10 ### Taking turns Clocks, timelines and turn-taking games, drawing who is busy when and counting the most at once. [Elementary Maths for Grades 1-5](/courses/elementary-mathematics-complete-masterclass)[Coding for Kids](/courses/kids-coding-blocks-masterclass)Ages 11 to 13 ### Timelines in code Times stored as numbers, lists of start and end times, and a first loop that counts what overlaps. [Python and AI for Kids](/courses/python-ai-kids-masterclass)[Maths Through Coding](/courses/maths-through-coding)Ages 14 to 18 ### Sweep-line algorithms Event sorting, tie rules and maximum overlap on real timetable data, with the pairwise method as a comparison. [Competitive Programming for Teens](/courses/competitive-programming-for-teens-course)[Problem Solving for Teens](/courses/problem-solving-dsa-masterclass-teens)Ages 18 to 67 ### Scheduling at work Capacity, rotas and bookings handled with sorted events, complexity in mind and every rule written down. [Data Structures & Algorithms Course](/courses/data-structures-algorithms-masterclass-college)[Data Analysis Course](/courses/data-analysis-mastery-course-college)Coding and AI ## An assistant can read a timetable in seconds. Why should a Derby teenager write a sweep line? Because the answer rests on a rule nobody wrote down. Ask an AI tool how many buses Derby runs at its busiest moment and it may produce a confident number. Whether that number is 109 or 117 depends on a tie rule it is unlikely to mention, and whether late-night trips were counted depends on how it read times past 24:00. A learner who has written the sweep knows which questions to put to any figure like that. Sweep lines also run through the software that AI itself depends on: schedulers deciding which job runs next, calendars spotting clashes, systems tracking how many users are connected at once. Understanding one small, exact algorithm opens the door to all of them. That is why a Derby teenager should still learn to program in 2026, in the city of the first factory: machines will count anything, but deciding what counts, and saying so plainly, is still the programmer's job. The longer argument is in [why teenagers should still learn to code in 2026](/blog/is-coding-worth-learning-2026). Delivery ## Allestree, Normanton or Chaddesden, all from home Derby is compact, but a lesson that needs no bus at all is simpler still. ### Across the city in no time A learner in Mickleover and one in Chellaston can share a lesson without either of them catching a single bus. ### The school stages in use here Reception, Key Stages 1 to 4, Year 9 options, GCSEs and A levels, named as Derby schools name them, and taught in English. ### A free lesson that teaches The first session is proper teaching on a real task and ends with a suggested level, course and weekly time. There is no card to enter. ### Level first, age second Five to ten learners at one stage, gathered from Derby, the wider UK and abroad, so that every level can find a sensible slot. ### A regular weekly pattern Two lessons a week at a set time, around eight a month, with breaks for holidays and exams arranged with the teacher in advance. ### Teachers on a fixed clock India does not change its clocks, so our teachers are four and a half hours ahead of Derby in British Summer Time and five and a half in winter, which keeps after-school and evening slots inside their day. Parents learning too Adults can learn alongside their children in separate groups at their own level, or one to one in the evening; the free lesson is the place to decide which suits a household. Fees ## Derby lesson fees A free start, then a single monthly fee. First class**USD 0** A complete lesson with nothing to pay, finishing with a level, a course suggestion and a proposed weekly time. Group tuition**USD 100** About eight live lessons each month in a group of five to ten learners at one level. Private tuition**USD 150** About eight live lessons each month, taught to one learner with the teacher's full attention. Outside India the fee is one US dollar amount for everyone, so a family in Darley Abbey pays exactly what a family in Allestree pays, and there is no separate pound tariff. Nothing is charged until the free lesson has settled a course and a slot; the pricing page covers pausing, missed lessons and switching between group and one-to-one teaching. Request placement[Check availability](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20could%20we%20book%20a%20free%20coding%20lesson%20for%20a%20learner%20in%20Derby%3F)Reviews ## Six unaltered Google reviews from families we teach 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 first lesson in Derby at no cost We set the first task by level: a turn-taking timeline for a young child, a first Python program that counts overlaps, or the full Derby bus timetable and a sweep line for a teenager ready for real data. ### 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 Derby one. [WhatsApp Modern Age Coders](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20could%20we%20book%20a%20free%20coding%20lesson%20for%20a%20learner%20in%20Derby%3F) Submitted details are used for placement and follow-up. FAQ ## Derby coding class questions The questions Derby families ask us most often. ### How many people live in Derby? The 2021 Census counted 261,364 usual residents in the Derby local authority: 256,961 in households and 4,403, or 1.7%, in communal establishments. ### Does Derby have many school-age children? Yes, relative to England. In 2021, children aged 5 to 9 and 10 to 14 each made up 6.5% of residents, against 5.9% and 6.0% nationally, and 22.6% of residents aged five and over were in school or full-time study. ### What is the Museum of Making? A Derby Museums site that tells the city's 300-year history of making, on what is widely regarded as the site of the world's first factory, within the Derwent Valley Mills World Heritage Site. We are not connected with Derby Museums. ### What is a sweep line? An algorithm that sorts the start and end moments of many intervals and passes through them once, keeping a running count. It finds the maximum overlap far faster than comparing every pair. ### How many buses run at once in Derby? In the Bus Open Data Service timetable for Tuesday 22 September 2026, the peak is 109 scheduled trips under way inside the city at once, first reached at 08:14, if a trip ending as another starts is not counted as overlapping. Counted the other way, the peak is 117. ### Where does the timetable data come from? From the Bus Open Data Service, built by the Department for Transport, which provides timetable, location and fares data for every local bus service in England as free open data. ### When are Derby lessons held? After school, in the evening or at weekends, at a UK time agreed during the free lesson. Our teachers are four and a half hours ahead of Derby in summer and five and a half in winter. ### Is there a Modern Age Coders centre in Derby? No. There is no Derby centre and no premises anywhere in the UK; every lesson is taught live online. A learner needs a computer with sound and a reliable connection, and our phone number is Indian. ### How much are lessons for Derby learners? The first lesson is free. After that a group place is USD 100 a month for two live lessons a week, about eight a month, with five to ten learners, and one-to-one lessons on the same pattern are USD 150 a month. Course, format and time are agreed before any charge. ### How are Derby groups put together? By level, pace and goals rather than age or postcode, with five to ten learners at one stage. If no group meets at a workable time, we suggest one-to-one lessons. Explore the UK ## East Midlands neighbours and beyond Just along the A52, the [Nottingham page](/best-coding-class-in-nottingham) stretches a rubber band round every tram stop. [Coventry](/best-coding-class-in-coventry) links its bus stops into groups and [Leeds](/best-coding-class-in-leeds) samples a footfall record fairly. The [England guide](/coding-and-ai-classes-in-england) sets out the school stages, and the [UK coding page](/coding-classes-in-united-kingdom) lists every UK page. Book the free class[Message us on WhatsApp](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20could%20we%20book%20a%20free%20coding%20lesson%20for%20a%20learner%20in%20Derby%3F)Free Derby class[Call +91 91233 66161](tel:+919123366161) ## Keep exploring Modern Age Coders ### Coding classes in nearby cities - [Best Coding Classes in Derry~Londonderry](/best-coding-class-in-derry-londonderry) - [Best Coding Classes in Doncaster](/best-coding-class-in-doncaster) - [Best Coding Classes in Colchester](/best-coding-class-in-colchester) - [Best Coding Classes in Dundee](/best-coding-class-in-dundee) - [Best Coding Classes in Chichester](/best-coding-class-in-chichester) - [Best Coding Classes in Dunfermline](/best-coding-class-in-dunfermline) - [Best Coding Classes in Salisbury](/best-coding-class-in-salisbury) - [Best Coding Classes in Preston](/best-coding-class-in-preston) - [Best Coding Classes in Wolverhampton](/best-coding-class-in-wolverhampton) - [Best Coding Class in Wicklow Town](/best-coding-class-in-wicklow) ### Learn more - [Coding Classes for Teens in the Netherlands](/coding-classes-for-teens-netherlands) ### Free resources - [SQL Tutorial: Databases, Basics to Advanced](/resources/sql) - [Introduction to SQL and Databases](/resources/sql/introduction-to-sql-and-databases) - [Modules and Packages in Python](/resources/python/modules-and-packages) - [SQL Interview Masterclass](/resources/sql/sql-interview-masterclass) ### From the blog - [Scratch vs Python for Kids: The Difference and Which First](/blog/scratch-vs-python-which-better-young-learners) - [Learn Python Step by Step: The Free Tutorial Library](/blog/learn-python-step-by-step) - [Python vs JavaScript: Which Should You Learn First?](/blog/python-vs-javascript-which-to-learn-first) ### Start here - [What Modern Age Coders families say](/love) - [Book a free demo class with Modern Age Coders](/book-demo) --- *Canonical: https://learn.modernagecoders.com/best-coding-class-in-derby*