This tutorial will use the problem below to illustrate how to work with degrees and minutes with the calculator. All TI calculators (that I know about) allow you to converte between degrees and minutes/Seconds. The problem below asks for the answers in minutes and assumes that you are familiar with sine, cosine, tangent as well as inverse sine, cosine and tangent  
Given sinθ = .341, express θ in degrees and minutes  
Step 1) Press 2^{nd} sin
Step 2) enter .341 

Step 3) 2^{nd} Angle 

Step 4)Scroll to DMS which stands for Degrees Minutes and Seconds  
Step 5) Press Enter  
Viola, your goold old TI Graphing Calculator came to the rescue:  
This angle is 19 degrees 56 minutes and 16.12 seconds 