If a shape has this, it will be the same on both sides if you fold it in half.
symmetry
When you fold a shape into equal parts, the line through the middle is called the...
line of symmetry
The direction that goes left and right.
horizontal
The direction that goes up and down.
vertical
What you see when you look in the mirror.
reflection
Something that stays the same and doesn't change
constant
Something that happens or appears in a repeated way
pattern
To make something longer or bigger. To continue something.
extend
To make something smaller in length
shorten
