The traditional Advent Wreath, can be a way to involve even very little children in learning about Christian preparation - not only for celebrating Our Lord's birth, but to make our hearts truly ready to receive Him.
The wreath's symbolism of the advent (coming) of Light into the world is clear. The gradual lighting of the four candles, one on each Sunday of the Advent season, help to symbolize our expectation and hope in Our Savior's first coming into the world.
The wreath itself is also symbolic. The circle of evergreen in which thecandles are placed represents everlasting life. The seedpods, nuts and cones used to decorate the wreath are symbolic of resurrection, and fruits represent wreath-perhaps on an outing in the park or woods, or even in the backyard- and assembling it at home is an interesting family project in which even the youngest children can participate.