If you have questions about a method that is not being specifically taught in the class, it may best to wait until the end of the class to have that conversation with the instructor. This way, the instructor gets to go over their entire 'lesson plan' and might just cover some of your questions without first being asked.
Make up a list of questions to take with you and keep it handy during class - possibly even a notebook with each question on a single page. You could then take notes specific to those questions if they are addressed during the class or you will then have them all handy at the end to discuss with the instructor one-on-one if that option is available to you.