There are basically, three (3) different types of meetings in Freemasonry:
1- Degree work. This is where an individual will take a degree. There are three degrees in Craft Masonry. A degree ceremony can be performed on one candidate, or with multiple candidates. Some states permit “one-day classes”, where all three degrees of Craft Masonry are perfomed in one day.
2- Regular stated meetings. These are where the rather mundane details of running a non-profit organization are conducted. As listed previously- The meeting is opened, you say the pledge of allegiance to the US Flag, you read the minutes of the previous meeting, you review old business, you discuss new business, you pay the water bill, electric bill, etc. If there is sick report, the names of the various sick brothers are read. If there are new candidates to be voted on, the ballot is conducted.
Stated meetings are generally restricted to Master Masons in good standing. Some lodges (example: military lodges) conduct business meetings on the EA degree, to enable maximum participation.
Some lodges will have a masonic, or non-masonic speaker, deliver a program. I visited a lodge which had two civil-war impersonators in 1865 uniforms, deliver a talk about the civil war. One lodge had a woman from the health department deliver a presentation about AIDS. The business portion of the meeting is concluded, prior to having a non-Mason deliver a presentation.
3- Special meetings. These may be where the new officers for the year are installed. Many special meetings are open to visitors, so that the families of the new officers may attend. A Masonic corner-stone laying ceremony is conducted outside, and visitors may observe the ceremony. Masonic funerals are open to the public.