The discussion centers on effective methods for reviewing math concepts, particularly trigonometric identities. Participants emphasize the importance of practice, noting that consistent use of mathematical concepts aids retention and reduces the need for memorization. Reference materials, such as calculus textbooks—specifically mentioning James Stewart's book—are recommended for their comprehensive tables of formulas, which can help verify work during practice. The conversation also touches on the use of mnemonic techniques to memorize formulas, suggesting that creating stories around mathematical symbols can enhance recall. While some express frustration with the necessity of obscure identities in tests, a consensus emerges that mastering a few key identities can facilitate deriving others when needed. Overall, the dialogue highlights the balance between practice, reference materials, and mnemonic strategies in mastering math concepts.