For next meeting (29/11/2015) you should present your first home project - CALCULATOR.
Usage of RelativeLayout is strongly recommended 
(look into http://developer.android.com/reference/android/support/percent/PercentRelativeLayout.html). 
UI should fill all available screen space, 
buttons should scale nicely. Device rotation is mandatory - also saving state inbetween activity restart.
You can borrow code as much as you like - but you must be able to defend/explain/change code.
Make your UI nice and good looking! 
Usage of GitHub is mandatory for all the projects.

Functions, that should be implemented:
+, -, *, /
=
C

everything else is bonus:
<= (backspace, delete by one last step/number)
. (calculation with floats)
+- (negating numbers)



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Alisa Dudinova DK21 - ok
Yogesh Sharma DK41 - ok