What are the best coding classes in Plymouth?
Census 2021 found 264,695 usual residents in Plymouth, and 21.8% of those aged five and over were in school or full-time study, above the English figure of 20.4%. Smeaton's Tower, which stood on the Eddystone reef from 1759, now stands on Plymouth Hoe. Modern Age Coders teaches Plymouth learners between six and sixty-seven in live online lessons, either one to one or in a group of five to ten at the same level, with teachers in India working to UK hours. The opening lesson is free; afterwards, a group place is USD 100 a month and one-to-one teaching is USD 150 a month.
Historic England lists 782 entries inside Plymouth, from Smeaton's Tower to a K6 telephone kiosk in Plympton. Where are they concentrated? Count them in one-kilometre squares and the busiest square holds 109 entries, or 170, depending only on where the grid happens to start. A kernel density map avoids the grid by placing a small smooth hill over every entry and adding the hills up. That swaps one arbitrary choice for another: the width of each hill, called the bandwidth. At 175 metres Plymouth shows 24 separate peaks, from the Barbican to Devonport and Plympton. At the 736 metres a textbook rule suggests, only four survive and Devonport disappears. Our teenagers learn to choose that width from the data rather than from habit.
Facts last verified 22 September 2026. Teaching is online; no Plymouth branch is claimed.
Choose by what the learner likes doing. Each course opens with a live lesson that costs nothing, and booking one needs no card.

Sprites, loops and simple maps built from blocks, including a game that drops counters on a harbour grid.
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Real datasets in Python, from reading a file of coordinates to drawing the smooth density map this page describes.
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Secondary maths in depth, including the probability, distributions and averages that sit underneath a density estimate.
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Statistics for adults without a programming background, from histograms and spread to estimating a distribution honestly.
See the syllabusBrowse the course atlas for more than one hundred options and use the coding roadmap to check prerequisites.
The four we are known for
These run underneath everything above. Every one is live and online, placed by ability rather than by age, and the first class is free.

Python, web and AI projects where the learner still owns the thinking.
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Automate the work you already do, then let AI carry part of it.
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Train a model, read what it learned, and be able to say why it is wrong.
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Run AI coding agents on real work without losing control of the codebase.
See the syllabusFigures from the 2021 census for the Plymouth council area, downloaded from Nomis and shown exactly as the Office for National Statistics published them.
| Measure | Plymouth | England |
|---|---|---|
| Usual residents | 264,695 | 56,490,048 |
| Living in households | 257,494 | Not compared |
| Living in communal establishments | 7,201 | Not compared |
| Aged 15 to 19 | 15,919 (6.0%) | 5.7% |
| Aged 20 to 24 | 21,172 (8.0%) | 6.0% |
| Aged 25 to 29 | 17,938 (6.8%) | 6.6% |
| Students among residents aged 5 and over | 54,709 (21.8%) | 20.4% |
| Usual residents per square kilometre | 3,314.8 | 433.5 |
Among 251,490 residents aged five and over, 54,709 were schoolchildren or full-time students in 2021, a larger share than across England.
People aged 20 to 24 made up 8.0% of Plymouth's residents against 6.0% nationally, and the late teens 6.0% against 5.7%.
With 3,314.8 residents to each square kilometre, Plymouth is packed between the Tamar and the Plym, several times the density of England as a whole.
That spread of ages shows up in our classes. A Year 4 child in Plympton might be building a first Scratch game, a Year 12 student in Mutley studying A level Computer Science, and an adult in Devonport learning Python to handle spreadsheets at work, each in a small group of learners at a matching level.
From The Box, which looks after Smeaton's Tower, and from Royal William Yard's own history.
Smeaton's Tower was first built on the Eddystone reef, out in the Channel. In the early 1880s it was found that the sea was eroding the rock beneath it, and it was taken down.
The Box says about two thirds of the lighthouse was moved, one stone at a time, to Plymouth Hoe, where it now stands 72 foot high with its lantern room restored.
Royal William Yard, designed by Sir John Rennie and named after King William IV, began supplying the Royal Navy with food and drink and did so for over a century.
We have no connection with The Box or Royal William Yard. Both belong here because they are a large part of why Plymouth's historic buildings sit where they do. Of the city's 22 Grade I list entries, nine are in Royal William Yard alone, which its owners describe as Europe's largest collection of Grade I listed military buildings. A map of listed buildings is partly a map of the navy.
Where the points come from
Historic England publishes the National Heritage List for England as open data under the Open Government Licence, with a grid reference for every listed building entry. Clipped to the Plymouth boundary it gives 782 entries: 669 at Grade II, 91 at Grade II* and 22 at Grade I. One entry can cover a whole terrace or a long wall, so the counts are entries, not buildings.
A kernel density estimate replaces each point with a smooth bump and sums them. The one decision that matters is how wide the bumps are.
| Bandwidth | Peaks | What the map shows |
|---|---|---|
| 75 m | 62 | Almost every cluster of a few entries becomes its own peak |
| 175 m | 24 | Peaks in 11 wards, the Barbican, Stoke, Devonport and Plympton among them |
| 300 m | 12 | Neighbouring clusters begin to merge |
| 600 m | 7 | Fewer, broader hills, with the small clusters gone |
| 736 m, the rule of thumb | 4 | Only four wards keep a peak, and Devonport is not one of them |
| 1,500 m | 2 | One hill over the city centre and one over Plympton |
Count entries in one-kilometre squares. Slide the grid 500 metres east and north and the busiest square jumps from 109 entries to 170, with no change to the data.
Place a Gaussian bump over each entry and add them on a 50-metre lattice. The map no longer depends on where a grid begins, only on the bump width.
Leave one entry out, ask how likely the map built from the rest makes it, and repeat for all 782. The width with the highest score is 175 metres.
A common shortcut sets the bandwidth from the spread of the points. For Plymouth it gives 736 metres, four times the cross-validated width, because the entries are spread over a long, narrow city. At that width Devonport, with 104 list entries and the second-largest count of any ward, has no peak of its own and melts into the slope running down from the Barbican.
At 175 metres the tallest peak, about 388 entries per square kilometre, sits near Southside Street on the Barbican, and the second, about 242, near Fore Street in Plympton. The ward with the most entries, St Peter and the Waterfront, holds 305 of the 782. Those are the numbers a learner can defend, because the width that produced them was tested rather than assumed.
Practised on listed buildings, then applied to open data of every kind: bus stops, trees, sensor readings, shop visits and the density plots inside data science notebooks.
| Check | On the Plymouth map | What it catches |
|---|---|---|
| Move the grid | The busiest square changes from 109 to 170 entries | A hotspot that is only an accident of where the lines fall |
| Vary the width | Peaks fall from 62 to 2 as the width grows | A story that depends on one unexamined setting |
| Cross-validate | Leave-one-out scoring picks 175 metres | A width chosen because it looked nice |
| Know the unit | Counts are list entries, and one entry can be a terrace | Mistaking a record for a building |
| Watch the edges | Bumps near the coast spill onto the sea | Density claimed where nothing can stand |
The last check matters on a coastline. A bump centred on a quay spreads half its weight over Plymouth Sound, so densities along the water are understated and some density sits on the sea. Learners fix it the simple way, by reporting peaks rather than totals near the shore, and then read about the corrections statisticians use.
Dots of paint dropped on a map, blurred with a sponge, and the discovery that a wide sponge hides the small clusters.
The heritage list clipped to Plymouth in Python, a density map written by hand, and the bandwidth chosen by cross-validation.
Density plots in analysis tools at work, with the bandwidth reported and justified instead of left at its default.
We are not connected with Historic England, The Box, Royal William Yard or Plymouth City Council. The heritage list and ward boundaries are open data under the Open Government Licence and the census tables are public; the density maps, peaks and cross-validation are our own analysis.
The age bands give a rough idea only; the free lesson finds the right first step.
Plotting points on a simple map, counting them in squares, and seeing how moving the squares changes the count.
Scratch Coding for KidsElementary Maths for Grades 1-5Drawing bar charts from lists of numbers in code and noticing that the bar width changes the picture.
Python and AI for KidsMaths Through CodingGaussian kernels, a lattice of grid points and leave-one-out cross-validation on real open data.
Data Science for TeensHigh School MathematicsKernel density, smoothing choices and clear reporting for adults analysing data in their work.
Statistics & ProbabilityData Science CourseBecause the default made Devonport vanish, and nobody would have noticed.
Ask an AI assistant for a heat map of these points and it will produce one in seconds, usually with a bandwidth picked by a rule of thumb. The picture will look authoritative. A learner who has tried several widths and scored them knows that the same 782 points can show four peaks or twenty-four, and knows how to decide which to believe.
Machine learning is full of the same trade. Every model has a setting that controls how smooth or how detailed it is allowed to be, and cross-validation is the standard way to choose it without fooling yourself. Kernel density is one of the clearest places to see that idea at work, because the effect of the choice is visible on a map of streets the learner knows.
So a Plymouth teenager should still learn to program in 2026, in a city that moved a lighthouse ashore stone by stone: software makes the map instantly, but deciding how much detail it is allowed to keep is still a human judgement. The longer argument is in why coding is worth learning in 2026.
Crossing Plymouth at the end of a school day takes time, and a live online lesson simply removes the journey.
A learner in Plymstock and another in St Budeaux can join the same lesson without anyone crossing the river.
Reception, Key Stages 1 to 4, GCSE options and A levels, named as Plymouth schools name them, with all teaching in English.
The free session teaches a real piece of work, then suggests a level, a course and a weekly slot. There is nothing to pay and no card to enter.
Five to ten learners at the same level, drawn from Plymouth, other parts of Britain and abroad, so each stage has a time that suits.
Two regular lessons a week, roughly eight a month, with half terms and exam periods arranged with the teacher beforehand.
India keeps the same time all year, four and a half hours ahead of Plymouth during British Summer Time and five and a half in winter, so UK afternoon and evening lessons stay within the teaching day.
Across the Tamar and beyond
Families in Saltash, Ivybridge, Tavistock or Torpoint join the very same classes, because groups are built around level and every lesson happens online.
The first lesson is free, and then there is one monthly fee.
A whole lesson at no charge, closing with a suggested level, course and weekly time.
Roughly eight live lessons a month in a class of five to ten learners at one level.
Roughly eight live lessons a month, with the teacher focused on your learner alone.
Outside India every family pays one US dollar fee, so Mannamead and Efford pay the same, and no prices are shown in pounds. We take no payment until the free lesson has settled a course and a slot; details on pausing, missed lessons and changing between group and private teaching are on the pricing page.
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
The first task matches the learner: a dot-counting map game for a young child, a short Python histogram for a beginner, or the heritage list and a density map for a teenager ready to work with real data.
What Plymouth families most often want to know.
Census 2021 recorded 264,695 usual residents in the Plymouth council area: 257,494 living in households and 7,201 in communal establishments such as halls of residence and care homes.
In 2021, 8.0% of residents were aged 20 to 24 against 6.0% for England, 21.8% of residents aged five and over were students against 20.4%, and there were 3,314.8 residents per square kilometre against 433.5.
A way of turning a set of points into a smooth map of where they are concentrated, by placing a small bump over each point and adding the bumps together. The bump width, called the bandwidth, controls how much detail survives.
On Plymouth's 782 listed building entries, a 175-metre width shows 24 peaks and a 736-metre width shows four, losing Devonport entirely. Cross-validation chose 175 metres as the width that most accurately predicts entries left out.
Historic England's National Heritage List for England, published as open data under the Open Government Licence. Inside the Plymouth boundary it has 782 entries, 22 of them Grade I.
The Box says it was built on the Eddystone reef in 1759, taken down in the early 1880s because the sea was eroding the rock beneath it, and largely rebuilt on Plymouth Hoe. We are not connected with The Box.
Weekday afternoons and evenings or weekends, at a UK time chosen during the free lesson. India is four and a half hours ahead of Plymouth in summer and five and a half hours ahead in winter.
No. There is no Plymouth centre and we have no premises anywhere in the UK; all lessons are live online. Learners need a computer with working sound and a stable connection, and our phone number is Indian.
The first lesson is free. After it, a group place costs USD 100 a month for two live lessons a week, about eight a month, in a group of five to ten, and one-to-one lessons on the same pattern cost USD 150 a month. Course, format and time are agreed before anything is charged.
By level, pace and aims rather than age or where a family lives, with five to ten learners at one stage. When no group fits the learner's week, we offer one-to-one lessons.
Up the M5, the Bristol page divides its city into library catchments with a Voronoi diagram, and along the south coast Brighton and Hove slides an eight-hour window over its ozone readings. Southampton builds a hash table from postcodes. The England guide covers the school stages, and the UK coding page gathers every city in one place.