“At the Last Supper, on the night he was betrayed, our Saviour instituted the Eucharistic sacrifice of his Body and Blood.” — Catechism of the Catholic Church, 1323

At St. Mary, Cause of Our Joy children receive preparation for their First Communion during or after second grade. Eucharist Preparation (for children age 7 and above) requires that the child and parent participate in a retreat prior to the celebration.
The date of the celebration is usually during the Easter Season. See the Catechetical Calendar for upcoming dates.