Coding for Kids · Lesson

Drawing a Grid

Rows and columns.

Drawing a Grid is a free Coding 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 Coding for Kids learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.

Grids Are Everywhere! 🟦

Hi builder! 👷 A grid is rows and columns, like a chessboard, graph paper, or a tile floor! 🟦🟦🟦

Today we use nested loops to draw our own grids. Let's go!

for row in range(3):
    print('A new row!')

Rows and Columns 📏

A grid has two parts:

Rows go side to side ↔️
Columns go up and down ↕️

The outer loop makes rows, the inner loop fills the columns!

for row in range(2):
    for col in range(4):
        print('o', end='')
    print()

The end='' Trick 🤫

Normally print jumps to a new line. To keep things on the SAME line, we add end=''. 🤫

Then we use an empty print() to jump down to the next row!

print('a', end='')
print('b', end='')
print('c')

A Tiny 2x2 Grid 🔲

Let's draw a grid with 2 rows and 2 columns. That's 4 little squares! 🔲🔲

for row in range(2):
    for col in range(2):
        print('#', end='')
    print()

Add Some Spaces 🌬️

If we put a space after each symbol, the grid looks neater and wider! 🌬️

Try print('#', end=' ') with a space inside the quotes.

for row in range(3):
    for col in range(3):
        print('#', end=' ')
    print()

A Big Wide Grid 🟩

Want a bigger grid? Just change the numbers in range()! More rows go down, more columns go across. 🟩🟩🟩🟩

for row in range(4):
    for col in range(8):
        print('@', end='')
    print()

Grid With Emojis! 😎

Who says grids have to be boring? Let's fill ours with emojis! 😎 Try frogs, stars, or hearts!

for row in range(3):
    for col in range(5):
        print('🐸', end='')
    print()

Numbered Grid 🔢

We can show the column number in each spot! This helps us SEE how the inner loop counts. 🔢

for row in range(2):
    for col in range(4):
        print(col, end=' ')
    print()

Checkerboard Idea ♟️

Real checkerboards switch colors! We can switch symbols too. For now, let's just keep one symbol — but imagine the possibilities! ♟️

for row in range(4):
    for col in range(4):
        print('■', end=' ')
    print()

Make It a Square 🟧

If rows and columns are the SAME number, you get a perfect square! Try 5 and 5. 🟧

size = 5
for row in range(size):
    for col in range(size):
        print('*', end='')
    print()

You Are a Grid Master! 🏆

Change size to any number and watch your square grow or shrink! 🏆

Try size 3, then size 7. Cool, right? Playing with numbers is the best! 🎮

size = 3
for row in range(size):
    for col in range(size):
        print('❤️', end='')
    print()

Quick Check! 🧠

Let's test your grid powers! 💪

Grid Champion! 🎉

Amazing work! 🎉 You can draw grids now!

Outer loop = rows (down) ↕️
Inner loop = columns (across) ↔️
end='' keeps stuff on one line 🤫
Empty print() jumps to a new row ⬇️

Next: triangles made of stars! ⭐

for row in range(3):
    for col in range(6):
        print('🟦', end='')
    print()

Frequently asked questions

Is the “Drawing a Grid” lesson free?

Yes — the full text of “Drawing a Grid” is free to read here on the web, and the Coding 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 Coding for Kids course, upgrade to CoddyKit PRO.

What will I learn in “Drawing a Grid”?

Rows and columns. You practise Coding 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 Coding for Kids?

No prior experience is required. Coding 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 “Drawing a Grid” 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 Coding for Kids lesson?

Yes. Every Coding 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.

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