What is vertical?

We explain how primary-school children are taught to recognise vertical lines in shapes, and what you can to to support your child's understanding at home.

What is vertical?

A vertical line is a line that runs up and down the page, like the following:

Children are introduced to vertical lines in Year 3. They may be asked to recognise them in a shape, for example:

How many vertical lines does this shape have?

(The answer is 4.)

When learning about shapes children are also taught to look for horizontal, perpendicular, parallel and diagonal lines.