I too found it trouble to visualize! What helped me was to focus on a specific spot. Like if you have a square that is half black, half white, look at it's orientation. Are any of the answers different? Usually one is different at least, so cross that one out. Then focus more on the specifics of that spot. Say the black half of the square...what is it connected to? Rather than trying to rotate it around, just see what it connects to, and match that up for the answers.
I also found that for simple shapes in objects, like the face of the dice, or the square I mentioned above, that if I cant see how it's going to "land" on another spot, to just draw out a little portion of the object to see how it will land on the next piece. It helped me out!
Hope this helps!