Lord, make us turn to you;let us see your face and we shall be saved!
"The Holy Father gives special consideration to the confession of children and, especially the first confession, which should always precede their first communion, even if they are fittingly separated by a period -of time. For from that early age should begin the preaching of penance which offers a more fervent foundation later on for living faith both in receiving the sacrament as well as in giving proper direction to one's Christian life. "
When children are sufficiently instructed and are aware of the special nature of these two sacraments, it will not be difficult for them to go first to the sacrament of reconciliation which - in a simple but fundamental way - arouses in them the awareness of moral good and evil and aids them to bring a more mature disposition to their happy meeting with Christ. The basic persuasion about the need of the greatest purity for receiving the eucharist worthily, if prudently instilled in children right from the time of their first communion, will accompany them for the rest of their lives and will lead to a greater esteem for, and a more frequent use of, the sacrament of reconciliation. -A Letter from the Vatican on First Penance, First Communion
Some hands-on ideas for first reconciliation --at 4RealLearning: here and here