Practice and evidence
How to assess a learning project with a clear rubric
Build a useful rubric for a website or design exercise: define the task, collect evidence, assess your decisions and choose one next improvement.
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Practical guides from VITON13 SCHOOL
Original guides to applied AI, AI agents, design and SEO, with concrete steps, checklists and exercises you can use in your own work.
Practice and evidence
A practice return plan for learning digital skills
Turn one completed digital exercise into a repeatable practice plan. Return without the tutorial, vary the task and keep a useful error record.
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Practice and evidence
Test a web page with a keyboard: a beginner exercise
Check a small web page using a keyboard. Record focus order, visible focus, link purpose and blocked actions without claiming a full accessibility audit.
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Practice and evidence
Read software documentation without getting lost
Use official documentation to solve one small task. Check the version, separate examples from requirements and build a minimal reproducible result.
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Practice and evidence
Verify an AI answer with a claim and source worksheet
Check an AI answer claim by claim. Find the primary source, distinguish dates and scope, and keep uncertainty visible before using the conclusion.
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Practice and evidence
A spreadsheet data quality exercise for beginners
Review a small invented spreadsheet for missing values, duplicates and inconsistent units. Keep raw rows, document corrections and verify the summary.
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Practice and evidence
A Python CSV cleaning mini-project you can verify
Build a small Python CSV cleaning exercise with synthetic rows, explicit rules and repeatable checks. Keep IDs and explain every accepted or rejected row.
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Practice and evidence
Write a portfolio case study that shows what you learned
Explain a learning project through its task, constraints, decisions and tests. Label concept work honestly and never invent clients or performance results.
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Practical learning routes
How to choose an online course that fits your goal
Compare online courses by your goal, starting level, practice and feedback. Build a shortlist with clear questions before choosing a programme.
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Practical learning routes
Why online courses look similar — and how to spot useful variety
Similar course titles can hide different practical work. Compare AI, design and SEO by tasks, evidence and the learning route you actually need.
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Practical learning routes
A digital skills learning roadmap built around one project
Build a digital skills learning route around one project. Connect research, AI, design, websites and SEO with visible work and clear checkpoints.
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Practical learning routes
How to use AI for studying without handing over the thinking
Use AI to organise studying, create questions and compare explanations. Keep source notes, verify answers and test what you can explain independently.
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Practical learning routes
How to check an AI answer: a practical evidence checklist
Check AI answers by separating claims, opening sources and matching dates. Practise finding unsupported statements before they reach your work.
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Practical learning routes
No-code automation for beginners: design a workflow before connecting tools
Plan a no-code workflow with a trigger, clear data and error handling. Test duplicate events, missing fields and the point where review is needed.
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Practical learning routes
UX research for beginners: turn assumptions into questions
Plan a small UX research session, ask about real experience and separate observations from assumptions before deciding what to change in an interface.
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Practical learning routes
How to write a brand identity brief that guides decisions
Write a brand identity brief with an audience, message, applications and review criteria. Turn vague style requests into a usable design task.
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Practical learning routes
Website design and development: responsibilities and a useful handover
Understand website design and development through a concrete handover. Define content, states, accessibility and acceptance checks before building.
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Practical learning routes
How to write an SEO content brief for a useful educational article
Build an SEO content brief around one learner question, reliable sources and useful practice. Plan headings and links without repeating keywords.
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Practical learning routes
A beginner’s content plan: connect questions, formats and maintenance
Create a content plan from audience questions, existing pages and practical evidence. Give each item a purpose, owner and realistic maintenance task.
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Practical learning routes
How to write a portfolio case study that explains your decisions
Build a portfolio case study with a clear problem, decisions and evidence. Label teaching projects and explain limits without inventing client results.
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Free tools of the school
Average typing speed: what the numbers mean and what counts as good
The average typing speed is about 52 words per minute. How WPM is counted, what counts as good, and why speed drops while learning touch typing.
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Free tools of the school
How to type faster: home row, no looking, accuracy first
How to type faster with touch typing: home row, the F and J bumps, one finger per column, no looking, accuracy before speed and short daily practice.
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Free tools of the school
TypeScript vs JavaScript: what types add and which to learn first
TypeScript vs JavaScript in plain words: what static types add, how TypeScript becomes JavaScript, one task in both, and which language to learn first.
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Free tools of the school
How long does it take to learn Python? Four honest stages
Basics, small programs, a first project, a specialisation: what each stage of Python asks of you, what counts as learned, and what slows people down.
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Free tools of the school
How to open STL file: viewers, slicers and what to check before printing
How to open STL file models with a system viewer, a slicer or a browser, and what to check before printing: size, units, scale and holes in the mesh.
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Free tools of the school
How to use Claude skills: install one, trigger it and check it worked
What a Claude skill is, where skills live, how to install and trigger one, how to check it loaded, and why you should read every file before installing.
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Free tools of the school
AI image prompts: a structure for controlled, consistent images
A seven-part structure for AI image prompts, how to change one variable at a time, keep a series consistent and handle rights and labels.
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Free tools of the school
SEO audit checklist: nine checks a site owner can run in an hour
A one-hour SEO audit checklist: indexing, robots.txt, sitemap, titles, headings, links, Core Web Vitals, mobile, structured data and duplicates.
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Free tools of the school
Competitor analysis template: the columns that matter and how to fill them
Which columns a competitor analysis template needs, how to fill it from public sources in one afternoon and how to turn the sheet into one decision.
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Free tools of the school
Average reading speed: what the numbers mean and how to read faster
The average reading speed of adults is about 238 words per minute. What the figures mean, why comprehension matters and how to read faster sensibly.
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Free tools of the school
Free online whiteboard for teaching: how to use it in class and online
A free online whiteboard for teachers, tutors and students, with no sign-up and no ads. What it does, how to run a lesson on it, and why drawing helps.
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Free tools of the school
Multiplication tricks: how to learn the times tables fast
Multiplication tricks that always work: twin facts halve the chart, ×9 on your fingers, ×5 as half of ×10, doubling for ×4 and ×8, and an order to learn.
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Free tools of the school
Random name picker: how to pick students and make teams fairly
How a random name picker chooses fairly, why computer randomness is good enough, how to avoid repeats and how to split a class into balanced teams.
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Free tools of the school
Roman numerals chart 1–100: how to read and write Roman numerals
A Roman numerals chart from 1 to 100 with the seven symbols, the six subtractive pairs, step-by-step reading and writing, years like MMXXVI and IIII.
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Free tools of the school
How to add fractions: same and different denominators, mixed numbers and simplifying
How to add fractions with the same or different denominators, add mixed numbers, subtract, and simplify the answer with the GCD. Worked examples.
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Free tools of the school
How to divide fractions: keep, change, flip, and why it works
How to divide fractions by multiplying by the reciprocal, why it works, plus multiplying fractions, mixed numbers and whole numbers, with examples.
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Free tools of the school
Order of operations: PEMDAS, BODMAS and the rules explained
The order of operations explained: brackets, powers, × and ÷ left to right, then + and −. PEMDAS vs BODMAS, the 8 ÷ 2(2+2) debate and worked examples.
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Free tools of the school
The Pomodoro technique: how 25-minute sessions work and how to use them for school
The Pomodoro technique: 25 minutes of focus, a short break, a longer one after four rounds. The steps, the origin, school tips and honest limits.
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Free tools of the school
What is BPM in music? Beats per minute, tempo markings and how to find a song’s tempo
BPM means beats per minute: the speed of the beat. How it fits the time signature, the Italian tempo markings with BPM ranges and how to find a song’s BPM.
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Free tools of the school
Time signatures explained: what 4/4, 3/4 and 6/8 mean and how to count them
Time signatures tell you how many beats are in a bar and which note gets the beat. Simple and compound metre, common and cut time, 5/4 and 7/8 counted.
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Free tools of the school
Piano notes: how to find and name every key on the keyboard
Piano notes repeat in a 12-key pattern: white keys C D E F G A B and five black keys. How to find C, middle C, sharps, flats and octave numbers.
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Free tools of the school
Piano chords: how they are built, with all 24 major and minor chords
Piano chords are built from intervals: major is 4 + 3 semitones, minor 3 + 4. All 24 major and minor chords, sevenths, inversions and progressions.
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Free tools of the school
Easy piano songs: 8 public-domain melodies with the notes written out
Eight easy piano songs with every note in letters, from Hot Cross Buns to Ode to Joy and Jingle Bells, in the order to learn them, all in C position.
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Free tools of the school
How to tune a guitar: standard tuning, string notes and tuning by ear
How to tune a guitar step by step: standard tuning E A D G B E with each string’s frequency, tuning with a tuner, the 5th-fret method by ear and drop D.
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Free tools of the school
Morse code alphabet: every letter and number, SOS and how to learn it
The full Morse code alphabet from A to Z and 0 to 9, the timing rules, SOS as one signal, where the code came from and how to learn it by ear.
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Free tools of the school
Caesar cipher: how it works, how to decode it and why it is easy to break
How the Caesar cipher works: encoding and decoding with a worked example, ROT13, why it breaks in minutes, Vigenère as the next step, and its history.
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Free tools of the school
How to read binary: binary to decimal, hex and text, step by step
To convert binary to decimal, add the powers of two under each 1: 1101 is 8 + 4 + 1 = 13. Reading a byte, dividing by 2, hexadecimal and text as bits.
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Free tools of the school
How many countries are there in the world? 195, and why other lists count more
There are 195 countries: 193 UN member states plus the Holy See and Palestine. Why Taiwan or Kosovo change the count, and how many per continent.
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Free tools of the school
The 7 continents: names, sizes and how many continents there are
The 7 continents in order of size with their areas, why other countries count 6, 5 or 4, and how Russian schools split continents and parts of the world.
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Free tools of the school
Largest countries in the world by area: the top 10 in km²
The 10 largest countries in the world by area in km², from Russia to Algeria, with UN figures, land versus water and why the US and China swap places.
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Free tools of the school
Smallest countries in the world: the top 10 by area, from Vatican City to Malta
The 10 smallest countries in the world by area in km², from Vatican City at 0.44 km² to Malta, why microstates exist and how they show on a world map.
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Free tools of the school
Countries in Europe: the list of all 44 European countries and their capitals
All 44 countries in Europe with their capitals, grouped by region under the UN M49 standard, and why Russia counts while Turkey and Cyprus do not.
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Free tools of the school
Countries in Africa: the list of all 54 African countries and their capitals
All 54 countries in Africa with their capitals, region by region under the UN M49 standard, the countries with two or three capitals and the new ones.
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Free tools of the school
Countries in Asia: the list of all 48 Asian countries and their capitals
All 48 countries in Asia with their capitals in five regions under the UN M49 standard, why Russia and Egypt are not counted and which capitals moved.
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Free tools of the school
Countries in South America: the list of all 12 countries and their capitals
All 12 countries in South America with their capitals, why Bolivia has two, and why French Guiana and the Falkland Islands are territories, not countries.
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Free tools of the school
Flags of Europe: all 44 country flags, the patterns behind them and the look-alikes
Every flag of Europe’s 44 countries in one line, the tricolours, Nordic crosses and Slavic colours behind them, and how to tell the look-alikes apart.
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Free tools of the school
Red, white and blue flags: every country that uses them and how to tell them apart
The 22 national flags made only of red, white and blue, the ones that add a fourth colour, why the trio is so common and how to tell the look-alikes apart.
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Free tools of the school
How many bones are in the human body? 206 for an adult, and why babies have more
An adult has 206 bones: 80 axial and 126 appendicular. Where they sit, why babies have about 270–300, and why some sources count differently.
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How does the heart work? Four chambers, two loops and one steady beat
The heart is a fist-sized muscle that pumps blood in two loops. Its four chambers, valves, the lub-dub beat and how much blood it moves each minute.
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What is DNA? The molecule that carries your genetic instructions, explained simply
DNA is the molecule that carries genetic information: a double helix written in four letters and about 3 billion base pairs long. How it is read.
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How do neurons work? From an electrical spike to a chemical message
A neuron fires an all-or-nothing electrical spike along its axon, then passes a chemical message across a synapse. How it works, with the numbers.
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What is pi? The number 3.14159 explained, from circles to trillions of digits
Pi is the ratio of a circle’s circumference to its diameter, about 3.14159. Why it never ends, how Archimedes trapped it and how many digits you need.
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Pythagorean theorem proof: three clear proofs of a² + b² = c², step by step
Three proofs of a² + b² = c²: four triangles in a square, similar triangles and Garfield’s trapezoid, each checked on the 3-4-5 triangle.
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Newton’s laws of motion: the three laws explained, with F = m·a worked examples
Newton’s three laws of motion in plain words: inertia, F = m·a and action and reaction, with worked examples, friction, skaters and a rocket.
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Foucault pendulum: how it proves that the Earth rotates, with the numbers
A Foucault pendulum shows the Earth turning: its swing plane stays fixed while the floor rotates. Paris 1851, the 11.3° per hour rule and the maths.
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Big Bang theory explained: how the universe began and how we know
The Big Bang theory says space itself expanded from a hot, dense state 13.8 billion years ago. The three proofs, what it leaves open, and a simple picture.
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Human evolution: a short timeline from the first upright apes to Homo sapiens
Human evolution in plain words: a common ancestor 8 to 6 million years ago, Lucy, Homo erectus, Homo sapiens 300,000 years ago, and the DNA proof.
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How to learn history fast: timeline first, causes next, then self-testing
How to learn history fast: build a timeline, link causes to effects, then test yourself with spacing. What the research says, and a 7-day plan.
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How do airplanes fly? Lift, the four forces and why the “equal transit” story is wrong
How do airplanes fly: wings turn air down and the air pushes back up. The four forces, the lift formula with numbers, the equal-transit myth and the stall.
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The deepest part of the ocean: Challenger Deep and what a descent would feel like
The deepest part of the ocean is Challenger Deep, about 10,935 m down. What pressure, light and cold do on the way, and who has been to the bottom.
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The death zone on Everest: what happens to the body above 8,000 metres
The death zone is the height above about 8,000 m where the body cannot adapt to the thin air. What the air, oxygen and blood measurements on Everest show.
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How is lightning formed? Charge in the cloud, the leader and the flash
Lightning forms when ice and hail in a storm cloud separate charge until the air breaks down. The steps, why thunder booms and how to count distance.
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Ohm’s law: V = I·R explained, with worked examples and series and parallel circuits
Ohm’s law in plain words: V = I·R and its three forms, an LED resistor, a copper wire, series and parallel circuits, power and where the law fails.
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Static electricity: what it is, why you get shocks and how Coulomb’s law works
What static electricity is: electrons moving between rubbed objects, Coulomb’s law with numbers, why winter shocks happen and how to stop them.
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How do magnets work? Poles, field lines, domains and why a magnet sticks to iron
How magnets work: poles and field lines, the domains inside iron, why fridge magnets stick, the compass and Earth’s field, with real numbers.
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How does a generator work? Faraday’s induction, turbines, AC and the grid
How a generator works: a coil turning in a magnetic field induces a voltage. Faraday’s law with numbers, turbines, AC, transformers and the grid.
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What causes earthquakes? Moving plates, locked faults and the snap that shakes the ground
What causes earthquakes: plates move, faults lock, stress builds and the rock snaps. Where it happens, how deep, how big, and what official advice says.
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What is a tsunami? Long waves from a sudden push on the ocean, and why they hit the coast
What is a tsunami: a train of very long ocean waves from a sudden jolt, usually an undersea earthquake. Speed, height, warning signs and official advice.
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How do volcanoes form? Melted rock, plate edges and hotspots, from mantle to crater
How do volcanoes form: rock melts, lighter magma rises and erupts. Where it happens (plate edges, hotspots), what shapes a cone, and official safety tips.
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How do tornadoes form? Wind shear, a rotating updraft and what scientists still don’t know
How do tornadoes form: wind shear rolls the air, a storm’s updraft tilts it upright and a funnel can reach the ground. The EF scale, where, when, safety.
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Hurricanes explained: how do hurricanes form, why they spin and what the eye is
How do hurricanes form: warm sea water of about 27 °C, rising moist air and Earth’s spin. The steps, the eye and the five wind categories in numbers.
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Northern lights explained: what causes the northern lights and why they glow green
What causes the northern lights: energy from the solar wind, Earth’s magnetic field and oxygen and nitrogen glowing high up. Colours, Kp and when to look.
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How hot is the sun? Core, surface and corona temperatures explained
How hot is the sun: about 5,500 °C (10,000 °F) at the surface, 15 million °C in the core and 1 to 3 million °C in the corona. Why they differ.
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What is a black hole? Event horizon, size and how we know they exist
What is a black hole: a place where gravity is so strong that nothing, not even light, escapes. How one forms, how small it is, and how we know they exist.
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How does the internet work? Packets, routers, undersea cables and DNS explained
How does the internet work: messages are cut into packets, routed hop by hop over cables, mostly under the sea, and DNS turns names into numbers.
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How does a computer work? Bits, transistors, logic gates and the processor explained
How does a computer work: data is bits in transistor switches, logic gates add them, and a processor runs fetch-decode-execute billions of times a second.
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How does GPS work? Satellites, timing signals and the four-satellite fix explained
How does GPS work: satellites broadcast the time, your phone measures the delays to four of them and solves for where it is, to within about 5 metres.
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How does a camera work? Lens, sensor, aperture, shutter and ISO explained
How does a camera work: a lens focuses light on a sensor of millions of pixels, aperture, shutter and ISO set brightness and blur, and pixels are numbers.
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AI agents: the learning route
What is an AI agent?
Learn how AI agents choose tools, check results and stop. Explore architecture, practical examples, limitations and a first Python learning project.
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AI agents: the learning route
AI agent architecture: model, tools, state and control
Understand the components of an AI agent, trace one request through the system and design checks for inputs, tool calls, state and final results.
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AI agents: the learning route
Types of AI agents: choose a pattern for the task
Compare fixed workflows, tool-using agents, planner-and-executor designs and systems with several agents. Choose a pattern using clear task requirements.
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AI agents: the learning route
AI agent vs chatbot vs assistant: what changes?
Distinguish conversational interfaces from systems that choose actions. Compare tools, permissions, state and checks using one catalogue learning task.
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AI agents: the learning route
Multi-agent systems: roles, handoffs and verification
Learn when several agents can help, how to define their roles and handoffs, and how to check shared evidence, disagreements and coordination costs.
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AI agents: the learning route
Build an AI agent loop in Python: a practical lab
Run a free Python teaching example to inspect tool calls, state, missing records and stopping limits. Learn where a model connects to the tested loop.
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AI agents: the learning route
AI agent memory: context, state and stored knowledge
Understand working context, operational state and persistent memory. Learn what to store, how to retrieve evidence and how to handle stale information.
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AI agents: the learning route
AI agent tools: turn a proposal into a controlled action
Learn how tool names, argument schemas, execution checks and results work together. Design a catalogue lookup and understand what MCP standardises.
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AI agents: the learning route
AI agent planning: goals, observations and stopping rules
Turn a goal into inspectable steps, revise a plan from evidence and design stopping rules. Practise planning with a small catalogue learning task.
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AI agents: the learning route
AI agent security: permissions, untrusted data and checks
Learn how to separate instructions from external data, restrict tools, protect stored information and test an agent against unsafe or unsupported actions.
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APPLIED AI
A practical AI workflow: from messy brief to checked result
A repeatable way to define a task, ask an AI system for useful work and check the answer, its facts and its sources before you use it.
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AI DESIGN
An AI design workflow that keeps human judgment in charge
Use generative tools to explore directions without losing the brief, accessibility or a coherent visual system: the final call stays human.
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SEARCH VISIBILITY
SEO before content: a website structure checklist
Before publishing more pages, make the existing site clear to visitors and to search engines: page inventory, routes, links and indexing.
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