Here's a slightly different format:
Draw a line the length of the page, about 2 cm / 1 inch from the edge, and an horizontal one across the middle of that thin band.
In the large area (80% of the page basically), I write the question at the top, my framework just below, and any calculations lower still. I put important numbers in a box for use later.
In the thin band, I use the top rectangle to write a couple of words for each of my recommendations. This becomes handy when you are asked to give a conclusion without the benefit of 30 seconds of reflection - which is what BCG will do; in the lower recaltanle, I will write ideas I have through the case but that are not relevant at that exact moment. I'll use that to not forget anything - and if I dont get a chance to get back to these points before the case ends, they become my natural next steps at the end of the conclusion.
Note: I write small and little, so a page is more than enough for me. If you write big / a lot, feel free to use more than one sheet - but please remember what is where!