Two more types of sentences

Exclamatory (exclamation) - expresses feelings and usually ends with an exclamation point.

Example:  Wow! I am so happy to have you in my class!
                  What a fun year we will have!

Imperative (command) - tells you to do something (action) and typically ends with a period.

Example:  Go to bed.
                  Line-up for recess.
                  Eat your vegetables.