For pattern folding, make cutouts of the figures you cant visualize and study it. this really helped me, bc i was able to visualize most of the formations later on. for the key hole, practice picking out the obvious mistakes within each solution. instead of trying to see which is right...find out which is wrong. this is bc if your lookin for the right answer, sometimes if most of da answer looks right...you might just think it is right. however, lookin for wrong answers eliminates this carelessness (warning: this might take a little longer, but if you get use to it you should pull it off very fast). top view end, use the kaplan technique. lets say they give you a front and end view, well count the number of perpendicular lines from both of those and see which answer still qualifies. this should usually eliminate at least 1 if not 2 answers. than POE. gl.