Coding Classes in Leeuwarden | Modern Age Coders

Course picks for Leeuwarden

Four courses for a capital with thirty-five villages attached

A groep 5 child in Stiens, a teenager in Grouw with no club within cycling distance, a student at one of the applied institutions here, and a parent in Goutum whose measurements arrive rounded and leave over-precise: four doors into one very wide municipality.

Ages 8 to 12

Python and AI for Kids

Typed Python, turtle drawings and a first program that learns a rule, in English, for the groep 5 to 8 child in Wirdum, Britsum or Mantgum.

See the syllabus

Ages 11 to 15

Maths Through Coding

Mathematics done in Python rather than on paper, for the learner who wants the trigonometry to produce something they can see.

See the syllabus

Teens and adults

Statistics & Probability

From data to hypothesis testing, for anyone who has to say how much confidence a figure deserves.

See the syllabus

Adults

Data Analysis Course

Excel, SQL, Python and BI, for the working parent whose inputs are rounded and whose outputs get quoted to four decimals.

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 codingAges 13 to 17

Vibe Coding for Teens

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

See the syllabus

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 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

Agentic codingProfessionals

Codex & Claude Code

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

See the syllabus

Leeuwarden today

A capital of 130,162 spread over 36 places and 238 square kilometres

The national register held 130,162 people on 1 January 2026, in 67,494 households averaging 1.89 people, on 237.55 square kilometres of land inside 255.06 of territory: a published 547 residents to the square kilometre, one of the lowest of any city in this series because the municipality is mostly farmland. In 1995 the count was 110,984, so it has gained 19,178 people in thirty-one years, a rise of 17 percent.

A city and thirty-five villages

The municipality contains 36 named places. On the 2023 figures the city itself held 95,890, then Stiens 7,830, Grouw 5,905, Goutum 3,360, Warga 1,905, Irnsum 1,390, Wirdum 1,165, Mantgum 1,140, Roordahuizum 1,085, Britsum 955 and Wartena 890. The remaining twenty-five are smaller still, down to Lions at about 25.

Small schools, spread wide

53 primary establishments teach 10,169 pupils, about 192 each, and 19 secondary establishments teach 7,784, about 410 each. A municipality with thirty-five villages needs a primary school in a great many of them, and a child in one of the smaller places has no realistic prospect of a local after-school club in anything.

Applied rather than academic

The municipality counts 21,170 students at institutions here, alongside 7,870 residents in applied higher education and only 930 at university level. Leeuwarden teaches at the applied level and sends its university students to Groningen. It was European Capital of Culture in 2018.

A tower that was never finished

The Oldehove was begun on 28 May 1529, started leaning during construction and was abandoned unfinished; the church beside it collapsed in 1576. It stands 40 metres and hangs 4.2 degrees out of true. The municipality reached its present extent through mergers in 2014, when part of Boornsterhem including Grouw came in, and in 2018, when parts of Littenseradeel including Mantgum arrived along with the whole of Leeuwarderadeel.

Where the learners are

Thirty-six places, twenty-two wijken, and a lot of farmland between them

The statistics office divides the municipality into 36 woonplaatsen, 22 wijken and 136 buurten. Almost all of the land is countryside and almost all of the people are in one town.

The city, 95,890 in 2023

The old centre with the Oldehove and the canals, the nineteenth-century ring and the post-war districts. Roughly three quarters of the municipality lives here and all nineteen secondary establishments are within reach of it.

Stiens, 7,830 in 2023

North of the city and the largest village, which came in with Leeuwarderadeel in 2018. Its own centre, its own schools, and far enough out to feel like a separate place rather than a district.

Grouw, 5,905 in 2023

South-west on the water, which joined in 2014 with part of Boornsterhem. A sailing village in summer and a school run in winter, twenty kilometres from the city centre.

Goutum, Wirdum and Warga

3,360, 1,165 and 1,905 in 2023. The villages on the southern edge, close enough for a secondary school commute and far enough that an evening trip back into the city is a decision rather than a habit.

Mantgum, Britsum, Wartena and Irnsum

1,140, 955, 890 and 1,390 in 2023. Village primary schools, a bus, a sports hall, and no chance whatever of a coding group forming from the local children alone.

The other twenty-five

Roordahuizum at 1,085 and then places the source does not size individually, down to Lions at about 25 people. A learner in any of them is in the same group at the same hour as a learner in the city centre.

One class, one hour and one fee cover all thirty-six, and the group a learner joins is set by what they can already do.

Verified local facts

Every figure, its source, and the one number this page had to work out

The national count, the municipal entry, the tower, the mergers, and the derivation the project below rests on.

The municipal count

Statistics Netherlands: 130,162 residents in 2026; 67,494 households averaging 1.89 people, 33,042 of them single-person, 49 percent; 18,096 under fifteen; 19,255 aged fifteen to twenty-five; 35,239 aged twenty-five to forty-five; 31,340 aged forty-five to sixty-five; 26,232 aged sixty-five and over; 53 primary establishments with 10,169 pupils and 19 secondary with 7,784; 21,170 students at institutions here; 7,870 residents in applied higher education and 930 at university level; total area 25,506 hectares, land 23,755; density 547; 36 woonplaatsen, 22 wijken and 136 buurten; 110,984 residents in 1995, a rise of 19,178.

The municipality, described

Its own entry: 130,179 residents on 1 January 2026, seventeen more than the national figure for the same date, both kept; 255.06 square kilometres, 238.38 of land and 16.68 of water, against 237.55 of land nationally, both kept; acting mayor Foort van Oosten; among the twenty-five largest municipalities of the Netherlands; 36 kernen.

The places, 2023

From the same entry: Leeuwarden 95,890; Stiens 7,830; Grouw 5,905; Goutum 3,360; Warga 1,905; Irnsum 1,390; Wirdum 1,165; Mantgum 1,140; Roordahuizum 1,085; Britsum 955; Wartena 890, and then twenty-five smaller places down to Lions at 25. Those eleven total 121,515, on a date three years earlier than the municipal figure, and this page does not treat the difference as a finding.

The tower, as published

The Oldehove: tower 40 metres; hangs 4.2 degrees out of true; construction begun on 28 May 1529; never completed; the church beside it collapsed in 1576. No lean in metres is given in the entry read.

The lean, derived here

Forty metres times the sine of 4.2 degrees is 2.93 metres. Allowing that 40 is rounded to the nearest metre and 4.2 to the nearest tenth of a degree, the value the published figures support is between 2.86 and 3.00 metres. This page states the range and treats 2.93 as the midpoint of a derivation rather than as a measurement.

The mergers

In 2014 part of the former municipality of Boornsterhem, including the village of Grouw, was added. In 2018 parts of Littenseradeel, including Mantgum, came in along with the whole of the former municipality of Leeuwarderadeel.

Modern Age Coders has no connection to the municipality, the tower or any school named here and claims none. The one figure on this page that is not published anywhere is the lean in metres, and it is labelled as derived every time it appears.

Signature project

Two point nine three metres: build the calculation that reports how much of its own answer to believe

One tower, two rounded inputs, one trigonometric function, and an answer that has to arrive as an interval.

1. Compute it the ordinary way

The lean of a leaning tower is its height times the sine of its angle from vertical. Forty metres and 4.2 degrees give 2.9300 metres, and the calculator will happily supply more digits than that if asked. Nothing so far is wrong; the trouble is what happens next, which is that somebody writes 2.93 down.

2. Ask what the inputs actually said

A height published as 40 means somewhere between 39.5 and 40.5. An angle published as 4.2 means between 4.15 and 4.25. The learner runs the calculation at the corners: the smallest result is 39.5 times the sine of 4.15, which is 2.86, and the largest is 40.5 times the sine of 4.25, which is 3.00.

3. Report the interval, not the midpoint

So the lean is 2.86 to 3.00 metres, a spread of fourteen centimetres, or about two and a half percent either side. Quoting 2.93 is not exactly false, but it presents a range as a point and invites the next person to quote 2.930. The output of the program is a pair of numbers, and that is the whole discipline.

One tower, and what the published inputs support
Quantity	As published	What it really means	Effect on the lean
Height	40 metres	between 39.5 and 40.5	plus or minus about 1.2 percent
Angle from vertical	4.2 degrees	between 4.15 and 4.25	plus or minus about 1.2 percent
Lean, computed at the midpoint	2.93 metres	one point from a range	not supportable on its own
Lean, computed at the corners	2.86 to 3.00 metres	the interval the inputs allow	the honest answer

A result cannot be more precise than the numbers it was made from

Rounding happens at publication, quietly, and then the rounded figure is fed into a formula that returns fifteen digits. Those digits are real arithmetic on the values as typed, and almost all of them are noise inherited from a decision somebody made about how to print a measurement. The remedy is to carry the interval rather than the point: read every published figure as a range implied by its last digit, run the calculation at the corners, and report both ends. Where the function is smooth and the inputs are independent, as here, the corners give the interval directly. This differs from the compounding problem in a chain of several ratios, where each step adds its own uncertainty; here there are only two inputs and one operation, and the width comes entirely from how the sources chose to round. Every figure above is either published in the entry named or the result of that arithmetic, and the derived lean never appears on this page without its range.

Reliable pipeline

Five habits for calculations built on published figures

Areas from rounded lengths, speeds from rounded distances and times, percentages from rounded counts, costs per unit from rounded totals: the inputs arrive rounded and the outputs get quoted to the decimal. Practised on the tower in the middle of this city.

When the inputs were rounded before you got them
Stage	Rule	What it prevents	What it gives you
Read the last digit	Treat a published number as a range implied by its precision	40 read as exactly forty	An honest input
Run the corners	Evaluate at the extremes of every input range	A single answer with invented digits	The interval the data supports
Report both ends	Publish the range, or the midpoint with its width	A point value quoted onwards forever	A figure the next reader can use safely
Match the output precision	Never print more digits than the inputs justify	2.9300 from a figure rounded to the metre	Numbers that do not oversell
Label what you derived	Mark any figure you calculated as calculated	A derivation mistaken for a measurement	A record somebody can audit

For younger learners

A room measured with a metre stick that only shows whole metres, and a question about its floor area. Every child gets a slightly different answer and none of them is wrong. Then they work out the biggest and smallest the area could be, and discover that the answer was a range all along.

For teenagers

A small interval type in Python that holds a low and a high value, arithmetic that works on intervals, and the tower calculation run through it. Then the stretch: which input would you want measured more precisely first, and how much would that narrow the answer?

For adults

The same treatment on a derived figure at work: cost per unit, conversion rate, yield, margin. Adults very often find a number quoted to two decimals that was computed from inputs rounded to the nearest thousand.

The population, household, area, school, village and tower figures come from the offices and entries named beside them. The lean of 2.86 to 3.00 metres is this page's own calculation from the published height and angle, presented as an interval and marked as derived wherever it appears.

Learning ladder

From a metre stick with no centimetres to arithmetic that carries an interval

The starting rung is settled in the free hour, and which of the thirty-six places a learner lives in is not an input.

Ages 6 to 10

How big could the room be?

Children measure with a coarse ruler and find the biggest and smallest answers.

Coding for Kids Python and AI for Kids

Ages 11 to 13

Ranges instead of points

Learners turn every rounded figure into a low and a high before calculating.

Maths Through Coding Problem Solving and Computational Thinking for Kids

Ages 14 to 18

Interval arithmetic and trigonometry

Teenagers build an interval type, run the tower through it and report both ends.

Statistics & Probability Python for Teens

Ages 18 to 67

Derived figures at work

Adults trace a quoted decimal back to the rounded inputs behind it.

Data Analysis Course Python Masterclass

Coding and AI

An AI will give you the lean of the Oldehove to four decimals. Why should a child in Leeuwarden learn to give it to none?

Because the arithmetic is exact and the inputs are not, and only one of those facts shows up in the answer.

Ask a tool how far the Oldehove leans and it will multiply forty by the sine of 4.2 degrees and return 2.93, or 2.9300, or more. Every digit is correct arithmetic on the numbers it was given. What it cannot see is that those numbers were rounded before publication, so most of the digits it returned describe the rounding rather than the tower. The information needed to catch that is not in the values; it is in how they were printed.

So the learner builds the interval type and runs the calculation at the corners. It is a small piece of code and it changes what a person does with every figure afterwards, because once you have seen fourteen centimetres of width appear out of two ordinary rounded inputs you stop trusting a decimal point on principle. A thirteen-year-old in Stiens who has done that will ask, at twenty-three, what the inputs to a quoted margin were rounded to. Tools will keep returning as many digits as you ask for. Deciding how many to keep has never been their job.

The case for a Leeuwarden child learning to code in 2026 is therefore nothing to do with towers. It is that published numbers arrive rounded, that calculators do not know this, that the difference between a point and an interval is the difference between honesty and overclaiming, and that the lesson lands hardest on something the child can see from the street. The longer argument is in why writing code still repays a child in 2026.

Delivery

Live classes for a capital with thirty-five villages around it

Grouw is twenty kilometres out, Stiens is north across the fields and Lions is a hamlet of about twenty-five people. None of them will ever support a coding club, and none of them has to.

No road, no bus, no bicycle

The lesson happens at the kitchen table in Wartena, Britsum or the city centre at one fixed hour a week, in a Frisian January as readily as in June.

English for the class, Dutch for the school words

Instruction is in English. Groep, havo, vwo and profielkeuze stay Dutch because those are the words on the timetable, and a child schooled partly in Frisian is asked to translate nothing.

What comes out of the opening hour

Evidence of the real level, a course chosen from it, and a weekly time, none of which requires a card.

Stage sets the group

A learner in Mantgum and a learner in the city share a group when they are at the same point, and do not when they are not.

Twice weekly, on the northern calendar

Two lessons a week at one repeating slot, eight in most months. Leeuwarden takes its holidays with regio Noord along with the rest of the province, and weeks away go into the plan before the slot is agreed.

A gap of three and a half or four and a half hours

Only the Dutch clock moves, so the distance to the teacher is shorter in summer and longer in winter. Late afternoon, early evening and the whole weekend work at both ends.

A village of twenty-five gets the same teacher as a city of ninety-six thousand

Lions had about 25 residents in 2023 and the city 95,890. No club of any kind will form for the children of the first, and the fee, the group size and the hour offered to a family there are the same as those offered in the centre of the second.

Fees

The fee, in dollars, in all thirty-six places

On the page rather than saved for a phone call.

First classUSD 0

A complete lesson with a real task, a level and a named next course.

Group tuitionUSD 100

Per month, normally eight lessons, five to ten learners placed by ability.

Private tuitionUSD 150

Per month, normally eight lessons, one learner with one teacher.

One international rate applies, quoted in dollars and never in euros, so a family in Lions sees exactly what a family in the city sees. Payment comes after the free lesson has produced a course and a time, and it comes over WhatsApp. Pausing, changing plan and missing a week are described on the pricing page.

Request placement Check availability

Reviews

Six families, in the words they left 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

Send the level; the village can wait

The first task might be a room measured with a coarse ruler, an interval type in Python that carries a low and a high, or a margin at work quoted to two decimals from inputs rounded to the nearest thousand.

FAQ

Leeuwarden coding class questions

The city, its villages, its tower, the teaching and the terms.

How far does the Oldehove actually lean?

Between 2.86 and 3.00 metres, and no source read here publishes the figure at all. The tower is given as 40 metres and 4.2 degrees out of true; multiplying gives 2.93, but 40 is rounded to the nearest metre and 4.2 to the nearest tenth of a degree, so running the calculation at the corners of both ranges produces an interval fourteen centimetres wide. Reporting that interval instead of the midpoint is the project on this page.

Which places does the class reach?

All 36 in the municipality: the city, Stiens, Grouw, Goutum, Warga, Irnsum, Wirdum, Mantgum, Roordahuizum, Britsum, Wartena and twenty-five smaller places down to Lions. The fee and the hour are identical in every one of them.

Is the class available in Frisian?

No, and neither is it in Dutch. Every lesson runs in English. The Dutch school words are kept as the school uses them, so groep, havo, vwo and profielkeuze are spoken as the child hears them, and a child who does part of the school day in Frisian is never asked to translate anything.

What time are classes for a family in Leeuwarden?

The teacher is three and a half hours ahead under Dutch summer time and four and a half in winter, because the Indian clock does not change. Workable hours run from the end of the school day to mid-evening, with both weekend days open, and one recurring slot is agreed in the free lesson.

We live in Grouw or Stiens, well outside the city. Does that matter?

It is the reason this exists. Grouw is twenty kilometres from the centre and joined the municipality only in 2014; Stiens came in with Leeuwarderadeel in 2018. Neither will support a local coding group, and a learner in either joins the same group at the same hour as one in the city.

Why does Leeuwarden have so few university students?

Because it teaches mainly at the applied level. The municipality counts 21,170 students at institutions here, while among its residents 7,870 are in applied higher education and 930 at university level. Frisian students who want a university generally go to Groningen.

What is in the free lesson?

The teacher finds the edge of what the learner can already do and sets one task just past it. A child might measure a room with a ruler marked only in metres. A teenager builds an interval type and runs the tower through it. An adult brings a derived figure from work. The hour ends with a course, a rung, a weekly time and a dollar figure, and nothing has been charged.

Is there a Modern Age Coders classroom in Leeuwarden?

No, and none is claimed near the Oldehove, in Stiens or anywhere in the Netherlands. Lessons are live online and need a laptop or desktop, working audio, a current browser and a stable connection. The telephone number on this page is Indian and is described as such.

What do Leeuwarden coding classes cost?

The first lesson is free. Group tuition is USD 100 a month for two live lessons a week, normally eight in the month, in a group of five to ten. Private tuition is USD 150 a month, one learner with one teacher at the same frequency. Course, format, recurring time and availability are confirmed before payment.

How many learners are in a Leeuwarden group?

Between five and ten, matched on level, pace and goal rather than on age, school or village. Private tuition is one learner and one teacher. If no group at the right level is running, the family can take private tuition or wait for the next one to form.

Explore the Netherlands

Out to the province, east to the city, and up to the country

Leeuwarden is the capital of Friesland, whose page is about a province that a database loses when it joins on the name; east along the Wadden coast is the province of Groningen and its city. The parent of the whole series is the Netherlands coding hub, and for machine learning rather than software there are AI and machine learning classes in the Netherlands and the AI and Python Academy.

Book the free class Close with WhatsApp

Four courses for a capital with thirty-five villages attached

Python and AI for Kids

Maths Through Coding

Statistics & Probability

Data Analysis Course

Python, AI, vibe coding and agentic coding

Vibe Coding for Teens

Python Automation Course

AI and Machine Learning for Teens

Codex & Claude Code

A capital of 130,162 spread over 36 places and 238 square kilometres

A city and thirty-five villages

Small schools, spread wide

Applied rather than academic

Thirty-six places, twenty-two wijken, and a lot of farmland between them

The city, 95,890 in 2023

Stiens, 7,830 in 2023

Grouw, 5,905 in 2023

Goutum, Wirdum and Warga

Mantgum, Britsum, Wartena and Irnsum

The other twenty-five

Every figure, its source, and the one number this page had to work out

The municipal count

The municipality, described

The places, 2023

The tower, as published

The lean, derived here

The mergers

Two point nine three metres: build the calculation that reports how much of its own answer to believe

1. Compute it the ordinary way

2. Ask what the inputs actually said

3. Report the interval, not the midpoint

A result cannot be more precise than the numbers it was made from

Five habits for calculations built on published figures

For younger learners

For teenagers

For adults

From a metre stick with no centimetres to arithmetic that carries an interval

How big could the room be?

Ranges instead of points

Interval arithmetic and trigonometry

Derived figures at work

An AI will give you the lean of the Oldehove to four decimals. Why should a child in Leeuwarden learn to give it to none?

Live classes for a capital with thirty-five villages around it

No road, no bus, no bicycle

English for the class, Dutch for the school words

What comes out of the opening hour

Stage sets the group

Twice weekly, on the northern calendar

A gap of three and a half or four and a half hours

The fee, in dollars, in all thirty-six places

Six families, in the words they left on Google

Send the level; the village can wait

Leeuwarden coding class questions

How far does the Oldehove actually lean?

Which places does the class reach?

Is the class available in Frisian?

What time are classes for a family in Leeuwarden?

We live in Grouw or Stiens, well outside the city. Does that matter?

Why does Leeuwarden have so few university students?

What is in the free lesson?

Is there a Modern Age Coders classroom in Leeuwarden?

What do Leeuwarden coding classes cost?

How many learners are in a Leeuwarden group?

Out to the province, east to the city, and up to the country

Keep exploring Modern Age Coders

Coding classes in nearby places

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