Art and painting · lesson 21 of 24 · free

Layers, undo and brush tools — Art and painting for kids

A drawing app gives you tools paper cannot. Undo takes back your last step and redo brings it back. The fill bucket colours a closed area, the colour picker copies a colour you tap, and the brush size and opacity sliders change how thick and how see-through your strokes are. Layers work like stacked see-through sheets, so you can change one part without touching the rest.

▶ Watch how it works

Got it? Practise ↓

Artist's tip

One job per tool — “learn what each tool does, and keep parts on separate layers”

  1. Undo = take back the last step; redo = bring it back; eraser = wipe digital marks.
  2. Fill bucket = colour a closed area; colour picker = copy a colour; brush size = thickness; opacity = how see-through.
  3. Layers keep parts separate: erase the bird on its layer and the sky below stays the same.

Use it for: Drawing on a tablet or computer, fixing mistakes fast and building pictures in layers.

Worked example: 🖱️ In a drawing app, which tool or setting copies a colour you tap? → colour picker

  1. You want exactly the same colour as part of your picture.
  2. The colour picker copies the colour you tap.

Check: Tap the sky with the colour picker — your brush is now sky blue ✓

▶ Watch it animated

✏️ Practice

Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.

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🏁 Lesson 21 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

🏅 Sign in with Google to earn the 🗂️ Layer Master badge when you pass — and a certificate when you finish all 8 lessons of Part 3 · Styles and digital art. You can still take the test without signing in.

🖨️ Digital Painting Layers and Tools Worksheet

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