As a teacher, you can see assignment analysis for the classes you teach.
Assignments for one class
You can see how to access assignment statistics for one class here: View assignment statistics from the class overview
Assignments for all your classes
It isn't possible to view all the homework assignments you've given out for all of your classes on one page. You would need to either drill into the whole school statistics or go into each of the classes to see the assignments that have been set.