Hi,
I am an individual freelancer and have few Android application live on GooglePlay.
I can definitely conduct the same for you. Please feel free to contact me for further queries.
Yes definitely, i can take workshop for your students. let me know the location.
I have written plenty of articles and blogs. you can search by name in google as Nilesh Sawardekar.
I also train people in android and c# and ASP.NET MVC