Computing, 4–6 years — 64 topics · MyLeoNes™ Kuks
64 computing topics written for 4–6 years — not a older text simplified. In teaching order, each a deck of five cards: the idea, why it exists, a worked example, the common trap and where you meet it.
Computing · 4–6 years
Copy and paste
You can make a second copy of words or pictures without doing the same work again.
Passwords are secret keys
A password helps a device know that the right person is opening an account.
Devices need power
A computer can only work while it has enough electrical energy.
Online and offline
Some things happen inside your device, while others need a connection to another computer.
A digital camera captures light
A camera turns light from a real scene into a picture the device can store.
Undo
You can take back a recent change instead of starting again.
Drag and drop
You hold a digital thing, move it, and let go where it belongs.
Zooming in and out
Zoom changes how large something looks without changing the thing itself.
A printer makes a paper copy
A printer turns something on a screen into marks on a real sheet.
Typing letters with a keyboard
You can make words appear on a screen by choosing keys in the right order.
Timers measure passing time
A timer counts the time from a chosen moment until it rings or stops.
Robots use sensors
Sensors let a robot notice things around it, such as light, touch or an obstacle.
Windows show separate tasks
A window is a separate space on a screen for one app, picture or task.
Scrolling reveals more
A screen may be too small to show everything at once. Scrolling moves the part you can see so you can find what is above or below.
Links open another place
A link is a marked word or picture that can take you to another page or part of a page. It is like a path between pieces of information.
Voice can be computer input
A microphone can carry your spoken words to a computer. The computer tries to turn the sounds into words or an action, but it can misunderstand.
Screen readers speak text
A screen reader turns written words and controls into speech or another output. It helps you use a digital page by listening instead of relying only on sight.
Computers need clear input
A computer does not know what you mean from a vague gesture or word. It uses the information you give it, so a clearer input gives it a better chance of doing the right thing.
Search finds a match
A search helps you find one thing among many by looking for a word, picture or sound that matches.
Random choices
A computer can choose one possibility without knowing which one will come first, like picking a card from a shuffled pack.
One device can do many jobs
The same computer can become a drawing tool, music player or storybook because different programs give it different jobs.
Sharing a digital message
A digital message can travel quickly to another person, but sharing means choosing who can receive it and what it contains.
Events start actions
A program can wait for something to happen, then begin an action.
Abstraction keeps what matters
A computer can use a simple version of something while leaving out details.
Computers can measure
A sensor lets a computer turn something in the world into information it can use.
Captions turn speech into text
A computer can listen to speech and show words on the screen, though it can make mistakes.
Computer memory holds what is in use
A computer needs a small, quick place to hold things while it works. You can compare it with keeping crayons on the table while you draw.
Computers can compare things
A computer can check whether one thing matches, comes before, or is bigger than another. This simple skill helps it choose what to show or do next.
Computers can learn from examples
Some programs are given many examples instead of one rule for every case. They find repeated clues, but their result can still be wrong and is not the same as a person’s understanding.
A simulation is a pretend version of something real
A computer can make a small model of a real place, object, or event and let you try things safely. The model is useful because it keeps some important parts, not because it is the real thing.
Folders group files
A folder gives related files one place, like a labelled box.
Screens need breaks
Short breaks help you use a screen comfortably and notice the world around you.
Online actions can leave a trace
Things shared online may be saved or seen again, even after they disappear from your screen.
Ask before opening or downloading
A button can start a new program or file, so check before bringing something onto a device.
Opening and closing an app
An app is a tool on a device. You can start it when you need it and close it when you are finished.
Colours on a screen
A screen makes colours with tiny lights. Red, green and blue lights can combine to make many colours.
Digital maps use location
A digital map can use a device’s location to show where it is. It can then help find places or a route.
Deleting a digital item
Deleting tells a device that you no longer want a picture, message or file in its usual place. Some devices keep it in a rubbish bin for a while.
Barcodes are codes computers can read
A barcode turns a thing into a pattern of lines that a scanner can recognise. You meet this when an adult buys food or a library checks a book.
A computer can control a motor
A computer can send a signal that makes a motor turn, stop or change direction. This is how code can make a toy car move or a small robot wave.
Computer games have rules
A game feels alive because it keeps checking rules: where things are, what you did and what should happen next. Under the pictures and sounds, code is keeping track of a small world.
A computer can show numbers as a graph
A list of numbers can be hard to compare. A graph turns the numbers into bars or points, so your eyes can see which is more, less or the same.
A computer can have settings
Settings let you change how a device looks or behaves without changing what the app is for. Brightness, language, sound and text size are common examples.
User profiles keep things separate
A profile lets a device remember which person is using it. This keeps choices, progress and pictures from getting mixed up.
Breaking a big task apart
A large job becomes easier when it is split into small jobs that can be handled one at a time. This is a powerful way to plan a computer task.
Clear instructions
A computer cannot guess what we mean. It follows small instructions in the order we give them.
Computers are machines
A computer is a machine made by people to handle information and carry out tasks.
Computers can help different people
Some computer features change how information is seen, heard or controlled so more people can use it.
Counters that change
A computer can keep a number and change it when something happens. Scores, turns and collected objects all need this small but powerful idea.
Digital sound
A computer can turn a sound into stored measurements and turn them back into sound.
Fixing mistakes
When a set of instructions fails, we can test the steps and change the part that went wrong.
Hardware and software
Computers need both physical parts and the programs that tell those parts what to do.
How animation makes movement
Many still pictures shown quickly can make a character seem to move.
Icons and symbols
A computer can use a small picture to stand for an action or an idea.
Input and output
A computer receives something, does a little work, and gives something back. Children can spot this flow in buttons, cameras, tablets and toys.
Keeping personal information safe
Some information belongs only to you and trusted adults, so sharing it needs care.
Networks connect devices
A network lets devices send information to one another, sometimes across a room and sometimes across the world.
Patterns and repetition
A repeated instruction can be noticed as a pattern. Naming the pattern helps us make longer sequences without saying every step.
Pictures are made of tiny dots
A screen picture is built from many tiny coloured squares called pixels. Looking closely helps children connect a bright picture with the small pieces a computer controls.
Position on a screen
A computer can describe where something is on a screen. Knowing position helps it place, move and find characters, pictures and buttons.
Save and find information
Computers can keep information so it is available later. Children meet this idea when they take photos, save drawings or open a game again.
Sorting information
Computers handle many things by putting them into groups or an order. We can practise this with objects we can see and touch.
Touch and click
A screen can wait for a touch, click or drag, then show what happened. This is how people tell a digital tool what they want.
Yes-or-no choices
A program can check one fact and choose what happens next. This simple idea makes games, stories and toys react to what is happening.
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