Those were the days my friend....I use to love and put the freshly run warm ditto paper up to my nose and inhale...AHHHHHH the sweet smell of youth! 
As a veteran teacher of more than 2 decades, I've seen things change tremendously in education. From chalkboards to whiteboards to Smartboards, things in our classrooms are always evolving and never stagnant. Nor should they be stagnant. Change is necessary to reach all of our children...times have changed...
The evolution of education...