Javascript for Kids · Lesson

Skip Counting

Count by twos and fives.

Skip Counting is a free Javascript for Kids lesson on CoddyKit — lesson 2 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.

Skip Counting! ⏭️

Hi again, number explorer! 🔢 Today we learn skip counting! ⏭️

Skip counting means jumping over numbers: 2, 4, 6, 8! Or 5, 10, 15, 20! It is like hopping! 🐰

Counting by Ones First 1️⃣

First, let's count normally with a loop. 1, 2, 3, 4, 5! 1️⃣

The loop adds 1 each time with i = i + 1. 🔁

for (let i = 1; i <= 5; i = i + 1) {
  console.log(i);
}

Now Jump by Two! 🐰

To skip count by two, we add 2 each time instead of 1! 🐰

We start at 2 and use i = i + 2. Watch it hop! 🦘

for (let i = 2; i <= 10; i = i + 2) {
  console.log(i);
}

Those are Even Numbers! ✅

Look! Counting by 2 gives us 2, 4, 6, 8, 10. Those are the EVEN numbers! ✅

Skip counting and even numbers are best friends! 👫

console.log('Skip by 2 makes even numbers:');
for (let i = 2; i <= 12; i = i + 2) {
  console.log(i + ' ✅');
}

Skip by Five! 🖐️

Now let's skip by FIVE! 🖐️ This is how we count fingers and toes!

5, 10, 15, 20... we add 5 each time! 🤚

for (let i = 5; i <= 25; i = i + 5) {
  console.log(i);
}

Skip by Ten! 🔟

Skipping by ten is super fast! 🔟

10, 20, 30, 40... great for counting money! 💰

for (let i = 10; i <= 50; i = i + 10) {
  console.log(i);
}

A Skip Counter Machine 🛠️

Let's make a machine that skip counts by any number! 🛠️

Tell it the step size, and it hops for you! 🦘

function skipCount(step) {
  for (let i = step; i <= step * 5; i = i + step) {
    console.log(i);
  }
}
console.log('Counting by 3:');
skipCount(3);

Try Different Steps 🎚️

Let's try counting by 4! 🎚️

Just change the step number. So flexible! 🤸

function skipCount(step) {
  for (let i = step; i <= step * 5; i = i + step) {
    console.log(i);
  }
}
console.log('Counting by 4:');
skipCount(4);

Put Numbers on One Line 📏

Let's collect the numbers and show them together! 📏

We use an array to hold them, then print the whole list! 📋

let numbers = [];
for (let i = 5; i <= 30; i = i + 5) {
  numbers.push(i);
}
console.log('Counting by 5: ' + numbers.join(', '));

Push Adds to the List ➕

Did you see push? It adds a number to the end of our list! ➕

And join(', ') puts commas between them. So tidy! ✨

let numbers = [];
for (let i = 2; i <= 20; i = i + 2) {
  numbers.push(i);
}
console.log('Even numbers: ' + numbers.join(', '));

You Can Skip Count! 🏆

Fantastic! 🏆 You learned skip counting!

🦘 Add a step bigger than 1 in the loop
✅ Skip by 2 makes even numbers
🖐️ Skip by 5 and 10 are super handy

Next: multiplication patterns! ✖️

Quick Check ✅

Brain hop! 🧠 To skip count by 2 in a loop, what do we add each time?

Lesson Recap 🎀

Super hopping, explorer! 🎀 Today you learned:

🦘 Change the loop step to skip count
✅ By 2 = even numbers
📋 push adds to a list
✨ join(', ') shows them nicely

Next: multiplication patterns! ✖️

Frequently asked questions

Is the “Skip Counting” lesson free?

Yes — the full text of “Skip Counting” 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 “Skip Counting”?

Count by twos and fives. 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 2 of 4, so you can start here or from the beginning and move at your own pace.

How long does the “Skip Counting” 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

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