When teaching the Faith to children, the best approach I have found is little and often. Just 10-15 minutes a day to light a candle, say a few prayers, read a short Jesse tree story, hang an ornament, and then make a few comments about Our Lady is all I do. Sometimes, though, it takes longer as questions are asked and answered....this is where a child makes the Faith his or her own.
Day 4: Noah and the Flood
Read The Jesse Tree pp. 16-19. Hang ornament (rainbow).
A cataclysmic flood destroys all mankind. Only faithful Noah and his family are saved by hiding in a large wooden ark along with many animals. God promises that He will never again destroy the earth with a flood.
Scripture reference: Genesis 7:6-9:17
Comment: As Noah took refuge in the ark when judgement came to the earth, so also we take refuge in Mary. She intercedes for us before the Father and she brings us safely to the Son. Her prayers keep us from sin and strengthen us in temptation.
Related Title: Mary, Refuge of Sinners
"There is certainly nothing contrary to faith in this, but the reverse. It is quite in accordance with the sentiments of the Church, which, in its public and approved prayers, teaches us continually to have recourse to this divine Mother, and to invoke her as the "health of the weak, the refuge of sinners, the help of Christians, and as our life and hope." St. Alphonsus Liguori
Prayer to Mary, Refuge of Sinners by St. Alphonsus Liguori
More lovely reading on Our Lady can be found (for free!) at The Glories of Mary (scroll down).