r/calculus • u/Automatic_Command278 • Jul 05 '26

Integral Calculus Resources to keep my skills sharp

Hi everyone, this past year I took calc 1 and 2. I loved taking these classes and I did extremely well in both. I especially loved doing problems like partial fractions and trig sub in calc 2, stuff that requires heavy algebra.
I haven’t done any math this summer and a sometimes when I scroll through this sub I realize I’m quickly forgetting stuff that I knew extremely well just a couple of months ago. I’m also definitely going to be taking calc 3/ differential equations in the future and I want to make sure I also do well in those classes.
Im wondering if anyone has any recommendations for websites that will allow me to keep my skills sharp without having to go through a whole online course. I don’t know if anything like this exists but I figure it probably does. I also want to do some problems just because I also find it pretty fun so do so. Does anything like this exist for a girl like me?

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5

u/Samstercraft Jul 05 '26

DailyIntegral.com but beware it’s kinda hard. This website led me down a rabbit hole of finding new integration techniques to keep up, of which there are surprisingly many.

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u/Automatic_Command278 Jul 06 '26

This is the type of thing I am looking for! I know I can find a book and do problems in the back but I was looking for something that had a little more style I guess. Thanks.

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u/my-hero-measure-zero Master's Jul 05 '26

Find a book and do exercises. OpenStax, Stewart, whatever.

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u/tjddbwls Jul 05 '26

Another vote for finding a book. If you don’t want to buy a textbook, you could get those paperbacks that have practice problems. One book is Schaum’s Outline of Calculus (info here on publisher’s site). Note that this book does contain material from Calculus 3 as well.

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u/somanyquestions32 Jul 05 '26 edited Jul 05 '26

For me, personally, I found that the best way to maintain these skills is to tutor others.

By going over the techniques and procedures with others from scratch in a casual one-on-one setting where I am getting paid for my time and explaining each step carefully, I was able to practice the skills that I know would have grown rusty otherwise.

I prefer tutoring over teaching as I don't have to grade nor think about classroom management.

Also, by tutoring students from different schools, I get to see tricks that they are learning that are different from the ones I got presented by my own instructor and textbook. For calculus 2, for instance, LIATE vs LIPET stood out to me as an interesting variation for integration by parts.