Vipassana means 'insight' (in the Pali language), something encountered on all Buddhist paths. It is used informally as the name of a western Theravadin Buddhist meditation practice, and properly, the method can be referred to as "samatha/vipassana".
The Vipassana group meets regularly on Wednesday evenings at 7:15 pm and ends at 8:15 pm, with members arriving at 7:00 to be seated and ready.
From time to time, the Vipassana group organizes weekend retreats with invited teachers.
Vipassana as practiced on Wednesday nights here, differs from older Theravadin traditions in making minimal use of traditional rituals like bowing and chanting. Seated meditation is the core of formal practice, and there are also dharma talks and discussion of written material.
The start and end of each sit is signalled by a singal bell, and it is customary (but not mandatory) to bow before and after each session. There is a single 45 minute sitting, followed by a dharma talk, reading or discussion. A guided meditation my be given by the teacher if so requested by a student.
Finally, the sit is concluded with a brief Mettā meditation. This is a state of directed loving-kindness towards all beings with an appeal for their greatest happiness and realization.
Yuttadhammo Bhikkhu (ordained Theravada Buddhist monk) explains Vipassana & Samatha meditation.