When I taught Trigonometry and Pre-Calculus, I always had a hard time getting students to label their graphs properly. They struggled with numbering the x-axis properly in radians.
So I created a few different types to use in class.
There is one from [-2Pi, 2Pi], in Pi/12 intervals, from [-3Pi, 3Pi] in Pi/4 intervals, and also from [0, 4Pi] in Pi/12 intervals.
I would teach and model using these exact same grids so that they became familiar with them and knew exactly what I expected from them in terms of graphing their trigonometric functions.