how to develop augmented reality applications for google glass

If you want to develop google glass application, you must knowledge of android application development, it’s a prerequisite
1.then you need to set up your environment and install your first APK
2. Learn glass design and apply it on your glassware
3. Learn about SDK features with coder samples
first you need GDK(Glass Development Kit) which is an addon to android development kit (SDK)
these the few links that can be helpful to you for learning google glass application development
http://developers.google.com/glass/develop/gdk/quick-start
http://developer.android.com/training/basics/firstapp/index.html
I hope it would be helpful for you.
thanks