1. A TYPE OF COMPOSITION IN PHOTOGRAPHY
RULE OF THIRDS
A TYPE OF COMPOSITION IN PHOTOGRAPHY

15. How to Apply the Rule of Thirds on Photoshop CC
Ctrl + K
Click on Guides, Grids
Change 1 to 100 
Change Inches to Percent 
Change Subdivisions from 4 to 3
Change the Custom Color to RED
Click OKAY
Click on the Crop Icon (It looks like the letter L and a backwards letter L) Its the fifth icon from top to bottom on the left hand side of your tool menu.  THIS IS FOR YOU TO BE ABLE TO APPLY THE R.O.T
Lastly, using your snipping tool (on the window menu type in Sn....) you will screen shot the image after cropping the rule of thirds. 
Refer to the Student Sample to Guide and Organize your Final Assignment Appliation