Our church has Home Groups - 6-12 people per group. Here's how we do them.
Our Home Groups meet either weekly or bi-weekly.
The structure is:
1. Do the home group Bible Study lesson we have prepared.
2. Share prayer requests and pray for one another.
Some of our Home Groups alternate homes to meet in, others meet in one home consistently.
Our Home Group Bible study lesson is put together by someone in our church. It's a 1-page handout with questions. (See below for this week's example.) It's based on the verses we will preach on for the coming Sunday. Right now we're preaching through the book of Hebrews.
Small group leaders should be able to facilitate the discussion and, as much as possible, keep it on track. They don't have to be Bible scholars. They have the questions in advance and look at them before the meeting.
The Home Group questions are placed in the lobby on Sunday morning where HG-ers can pick them up in advance of their meeting. And, the questions are emailed to the leaders the Saturday before the weekly meetings.