That chart looks a lot like my test notes I made for Econ-101 back in the day. We convinced the professor that we needed to have an open notes test so I managed to fit about 6-8 chapters of the book onto the single 3X5 index card that she allowed us to use.
Picture little tiny supply/demand charts and tons of little tiny formulas and factoids about economics on a little 3X5 card. She was impressed with my ability to put so much information into such a small space.’
Truth be told, by creating that little “Open book” chart, I grasped the material so well that I rarely had to glance at it. Great way to study.
“Open book” tests...
My professor allowed us to bring in one note card too. Wonder if we had the same one, but that was a trend back then.
It was amazing how small I could write on that card. Could you imagine how it would have been then, if we had the computer capabilities we have now to legibly shrink data onto one card? LOL
Ha. Professor got you THAT time! Open book/open note test always MUCH HARDER than closed.