Most Churches in Britain hold Carol Services in the weeks leading up to Christmas. The service usually consists of Hymns about Christmas (Carols) and readings from the gospels telling the Christmas story. Lots of Candles are lit around the church and sometimes the congregation hold candles to see by.

In Britain, a Carol Service is the name for a Christmas

Christmas

Christmas or Christmas Day is an annual holiday generally celebrated on December 25 by billions of people around the world. It is a Christian feast that commemorates the birth of Jesus Christ, liturgically closing the Advent season and initiating the season of Christmastide, which lasts twelve days...

 church service, In schools they hold the services in the last week of term They are often held in a local church or cathedral with parents attending. A Nativity Play

Nativity play

A Nativity play or Christmas pageant is a play which recounts the story of the Nativity of Jesus. It is usually performed at Christmas, the feast of the Nativity.-Liturgical:...

 is often performed at carol services for primary schools, The birth of Jesus

Jesus

Jesus of Nazareth , commonly referred to as Jesus Christ or simply as Jesus or Christ, is the central figure of Christianity...

is usually told through readings from the Bible in schools for older children.
Christmas carols are sung by the students, who practice for the event during classes in December.