This training, "Reading Scientific Papers", from the Office of Intramural Education & Training from the National Institutes of Health (NIH) is excellent. It's well worth watching in its entirety. If you only have a few minutes, you can skip to 17:00 when the speaker begins recommending specific steps to take to read a scientific paper.
“How to (Seriously) Read a Scientific Paper.” Science | AAAS, 21 Mar. 2016, https://www.sciencemag.org/careers/2016/03/how-seriously-read-scientific-paper.
Mary Purugganan, PhD, and Jan Hewitt, PhD. “How to Read a Scientific Article,” Cain Project in Engineering and Professional Communication, Rice University, http://www.owlnet.rice.edu/~cainproj/courses/HowToReadSciArticle.pdf.