The number of Christians that gather together in a group could be two, four, ten, twenty...
Ask the children why they think Christians might sometimes choose to get together in big groups and other times in small groups.
Ask the children if they have ever been in a group where hundreds of Christians have gathered together. If a child has been in such a group ask them what it was like and what everybody was doing, or talk about an experience you have had.
Ask the children where Christians might meet together in small groups. Point out that Christians don’t have to get together in a church building; they can get together in homes or other buildings too.
Briefly talk about the different opportunities there are in churches for Christians to get together. Children that go to church may only know about the times that they meet with other Christians.