What Coders Build
Games, apps, cartoons and robots — all made with code!
What Coders Build is a free Javascript for Kids lesson on CoddyKit — lesson 3 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Javascript for Kids learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Let's See What Coders Make! 🎉
Hello again, amazing coder! 🌟
Code can build SO many cool things. 🛠️
Get ready to be wowed! 🤩 Let's explore!
Coders Make Games! 🎮
That fun game on a phone or tablet? 📱
A coder made it with code! 🕹️
The jumps, the points, the colors — all built step by step. 🏆
Coders Make Apps! 📲
Apps are little helpers on your screen. 🧰
A weather app ☀️, a drawing app 🎨, a music app 🎵...
Every single one was made by a coder. So helpful! 💛
Coders Make Cartoons! 🐭
Your favorite cartoons and movies? 🎬
Many use code to make characters move and dance! 💃
Coders and artists team up to bring them to life! 🌈
Coders Make Robots! 🤖
Beep boop! 🤖 Robots need instructions to move.
Coders write code to tell robots:
- 🚶 Walk forward
- 🤲 Pick things up
- 👋 Wave hello
How cool is that?! 😄
Coders Make Websites! 🌐
Every website you visit was built with code! 🖥️
The buttons, pictures, and words you click on... 🖱️
All put there carefully by a coder! 🧑💻
Coders Help Doctors! 🩺
Code isn't just for fun — it helps people too! 💗
Coders build tools that help doctors keep us healthy. 🏥
Code can do good things in the world! 🌍
Coders Help Explore Space! 🚀
Whoa — code even goes to space! 🌌
Rockets and space robots use code to fly and explore! 🛰️
Coders help us discover the stars! ⭐
Coders Make Music and Art! 🎨
Code can be creative too! 🎶
Coders make music makers 🎹 and drawing tools 🖌️.
You can make beautiful art with code! It's like a paintbrush of magic! ✨
It All Starts With Small Steps 🧱
Big games and robots look huge! 🏰
But they're built from tiny steps, like stacking building blocks. 🧱
One block at a time — that's how coders build BIG things! 💪
Look What Code Can Do! 🌟
Wow! Code can make:
- 🎮 Games
- 📲 Apps
- 🐭 Cartoons
- 🤖 Robots
And SO much more! And one day, YOU will build them! 🦸
Quick Check
Quiz time, superstar! This one is easy peasy! 😊
You're a Star! 🌟
Fantastic work, coder! 🥳
Today you learned coders build:
- 🎮 Games and apps
- 🐭 Cartoons and robots
- 🌍 Tools that help the world
Next up: the best part — YOU can be a coder! 💛 See you! 👋
Frequently asked questions
Is the “What Coders Build” lesson free?
Yes — the full text of “What Coders Build” is free to read here on the web, and the Javascript for Kids course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Javascript for Kids course, upgrade to CoddyKit PRO.
What will I learn in “What Coders Build”?
Games, apps, cartoons and robots — all made with code! You practise Javascript for Kids with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Javascript for Kids?
No prior experience is required. Javascript for Kids on CoddyKit is structured for beginners through advanced learners; this is — lesson 3 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “What Coders Build” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Javascript for Kids lesson?
Yes. Every Javascript for Kids lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- What Is a Computer?
- What Is Code?
- What Coders Build
- You Can Be a Coder!