I'm taking a Mathematical Structures course as a 2nd year math major. Our course textbook is Discrete mathematics and Its Applications, by Rosen.

It's been very difficult finding good content on places like YouTube to make up for gaps in my lectures or to supplement my notes. I'm by no means asking for some quick 3 minute videos on problem solving, I'm not trying to neglect theory here. But I would greatly appreciate suggestions, whether it's an online course of bundled videos that costs a couple bucks or its a good youtube channel that covers everything I need to know.

This class is kind of kicking my butt at the moment, some recommendations would be greatly appreciated.

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    $\begingroup$ I like this textbook. It is free online, and has problems online with solutions (and maybe hints): discrete.openmathbooks.org/dmoi3.html $\endgroup$
    – Sue VanHattum
    Sep 11, 2020 at 4:46
  • $\begingroup$ Yes, Oscar's book is quite good and very nice at being active. $\endgroup$
    – kcrisman
    Sep 11, 2020 at 15:59
  • $\begingroup$ (Also, "Some exercises also allow you to enter and check your work, so you can try multiple times without spoiling the answer." so I think he has WeBWorK embedded, e.g. discrete.openmathbooks.org/dmoi3/sec_counting-combperm.html#TyW) $\endgroup$
    – kcrisman
    Sep 11, 2020 at 16:04
  • $\begingroup$ Personally, I teach from Rosen, and I find it to be a great, readable book (much more clear than other textbooks in the same area). Can I ask what about the Rosen text is not working for you? $\endgroup$ Sep 11, 2020 at 23:43
  • $\begingroup$ Separately, Kimberly Brehm made video lectures following the Rosen text. I don't agree 100% with how she expresses things therein, but maybe 90%. A few of my students were happy to have this: youtube.com/playlist?list=PLl-gb0E4MII0L5lz8uQ8j5aSFQQHoAzXx $\endgroup$ Sep 11, 2020 at 23:45

1 Answer 1


Sue has linked to a great book (which I hope she turns into an answer), and here are two more quality ones that are free, at least, though less inquiry-oriented.

There are others at https://pretextbook.org/catalog.html but I am not as familiar with those. Unfortunately I don't think that any of these (yet) has embedded videos, though I bet that will come.


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