Too

The word 'too' is used as a substitute for also, E.G I can see you too [also].
Too has two meanings one of them is it is a substitute for also and the other meaning is it can be used as very E.G I was not too happy when I broke my leg.

My mum was not too happy with me.
I am going now are you coming too.

Here are some links to play
Two to and too
Classroom two to and too