Page 11 - Ones and Zeros 3 (Student Book)

Images and Pixels 1 1

Lesson
Lesson

Pixels.
If you look closely at a digital picture, you can see millions of tiny little squares.
Sometimes you can see them just by looking at a picture. Other times you have to
zoom in to notice them.

Look at this picture of a lady.

If you zoom in, you will
see it is made up of
lots of little squares
called pixels.

Pixels, which is short for ‘picture elements’, are colourful
squares in a picture that go together to make up a digital
picture.

The more pixels a picture has, the better it looks! That’s
why a picture that doesn’t have many pixels looks better
when we zoom out rather than if we look at it up close.

Let’s Practise

Zooming in and out on pictures.

Use your phone, tablet, or computer to zoom in and out on
different pictures. What do you notice?

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