The origins of the Eucharist are found in the Last Supper that Jesus shared with his Apostles. "In order to leave them a pledge of his love, in order never to depart from his own and to make them sharers in his own Passover, he instituted the Eucharist as the memorial of his death and Resurrection and commanded his Apostles to celebrate it until his return. The Holy Eucharist completes Christian initiation.
~~from www.usccb.org, the United States Catholic Catechism for Adults | en español
Families of students in the second grade or above, who have not received First Holy Communion and who have completed the previous year of Faith Formation last year, are automatically enrolled in Sacramental Preparation. A child must be in his or her second consecutive year of Catholic education or Faith Formation classes in order to be eligible for the sacrament of First Holy Communion. He or she must also attend Mass regularly.