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Curves, Zigzags and Loops: Line Control for Kids

Wobbly lines? Teach kids to draw smooth curves, loops and zigzags with playful practice, from unicorn manes to rainbow tails. Simple tips inside.

By Kevin Coulston, author and illustrator of 88 children’s art books · · 3 min read

Line control comes from practising different kinds of lines on purpose: straight, curved, zigzag and looped. Playful drawings with lots of curves, like manes, tails and rainbows, give kids that practice without making it feel like a worksheet.

Every drawing is made of lines, and every line needs control. Some are easy (a short straight line), and some are harder (a smooth curve that ends in exactly the right spot). Kids get better at all of them with practice, especially when the practice is fun.

The four basic lines

  • Straight lines for bodies, legs and buildings.
  • Curves for heads, tails and hills.
  • Zigzags for teeth, lightning and spikes.
  • Loops for curly hair, clouds and springs.

Kids who are comfortable with all four can draw nearly anything.

Practice with a purpose

Instead of filling a page with lines, give each line a job:

  • Curves become a rainbow.
  • Zigzags become a dragon's spikes.
  • Loops become sheep's wool.
  • Straight lines become rain.

The child is practising control while making a picture they care about.

Unicorn animals: a curve celebration

Unicorn animals have flowing manes, swirly horns and curly tails, which means lots of curves and loops. How to Draw: Unicorn Animals shows kids how to add those magical details step by step. Each lesson is built in six steps, with a light gray outline of the finished drawing on every step so kids can plan their size, and the new lines drawn in black. That guide helps them place curves confidently instead of guessing.

Tips for smoother lines

  • Draw lightly first. Light lines are easier to adjust; see teaching kids light sketch lines.
  • Move the whole arm for big curves. Small finger movements make wobbly big curves.
  • Turn the paper. Rotating the page lets the hand draw the curve in its most comfortable direction.
  • Go slow on the end. Slowing down near the end of a line helps it stop in the right place.
  • Practise warm-up loops. A row of loops before drawing loosens the hand.

Wobbly is OK

Cartoon drawing is forgiving. A slightly wobbly mane still looks like a mane, and a bumpy tail can look fluffy. Celebrate the attempt and point out the lines that went well. Control grows with time, and confidence grows with encouragement.

Questions parents ask

How can kids improve line control in drawing?

Practise straight lines, curves, zigzags and loops inside fun pictures, draw lightly first, use the whole arm for big curves and turn the paper when needed.

Why are my child's drawing lines so wobbly?

Wobbly lines are normal while hand control develops. Slowing down, drawing lightly and lots of playful practice all help.

What should kids draw to practise curves?

Rainbows, manes, tails, waves, snails and clouds are all full of curves and fun to draw.

More in hands and movement, or browse all 217 posts on the blog.

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