Optional extensions
Here are 3 optional steps that might add some time to the three-pass approach.
Little boxes – Surrounded math equations, figures and tables with boxes to quantify how many details in terms of math equations you can expect later on.
Highlighters – During the second-pass you can take notes at the margins, draw little diagrams for better understanding and use highlighters in combination.
Mindmaps – If you are more visual and want to get a better overview of the paper, mind maps may be a suitable fit.