Triangle Patterns

I am learning to make a repeating pattern using triangles.
I know I can do it when I have used triangles to create a repeating pattern.
For this task you will need to make some triangles. You can create your own or follow the link below to find some that have already been prepared for you.
Using triangles, and only triangles, what repeating patterns can you create?
Independent Task
Make a collection of different triangle patterns and describe your patterns.
You can colour some of your patterns to help make them really interesting.
Extension
Using two different coloured pencils, create ten different interesting patterns and describe them.