John makes excellent points, one being that liturgy does not just mean the Mass. It seems to be a “modern invention” to call the Holy Sacrifice of the Mass the liturgy. Please let the class know about the sacrificial nature of the Mass, the priest “in persona Christi” offering Himself (His sacrifice), to the Father. (So much of the meaning of the Mass has been lost in the last 40 or so years.)
The connection with the Jewish worship, holy of holies, etc., that was mentioned, is so meaningful also.
Yes, I do concur with John. However, the term “liturgy” means the “work of the people” when it comes to worship. I believe it is a Greek word.
Furthermore, the Holy Father does make use of the word “liturgy” when describing the Mass. His great work, “The Spirit of the Liturgy” centers precisely on the Mass. If anything Pope Benedict is trying to steer the barque of Peter into a better and fuller understanding of the Holy Sacrifice of the Mass.
When I taught RCIA, I included lessons on the Mass simply because this is the most important act that we, as Catholics, partake. My PV, who served as our cathedral’s first rector, also incorporates explanations of the Holy Sacrifice of the Mass in his homilies. Not only has it benefitted those in RCIA, but, it has helped to “reintroduce”, so to speak, the Mass to the rest of the faithful.
He preached a beautiful homily Christmas Day, wherein he tied the fact that Christ was born in Bethlehem, which means “house of Bread” and then becomes our Bread from heaven in the Mass. He who was laid in a manger (from which animals eat - also, in Italian, the word “mangiare” -which sounds like manger- means “to eat”) becomes our very Food by virtue of His Sacrifice. By the way, this particular concept doesn’t diminish the Sacrifice at all, as this idea appears in some of Pope Benedict’s early books.
Having said all of that, I would suggest to the OP that perhaps he get his pastor involved and, perhaps, take my PV as an example.