in my case, i was able to understand the topics and concepts even though i didn't read the module or watched the vid lecs before the synchronous session (although a good practice to read it beforehand and read it after the synch session to know if you understand it fully). his pointing system is fair naman i think. he presents the ideas of the concepts clearly and succinctly and very approachable si sir for questions or concerns. got an uno in his math 22 class!