Preschool

Matthew 13:31-32 He told them another parable: “The kingdom of heaven is like a mustard seed, which a man took and planted in his field. Though it is the smallest of all seeds, yet when it grows, it is the largest of garden plants and becomes a tree, so that the birds come and perch in its branches.”

K-5th grades

Psalm 128:3  Your wife will be like a fruitful vine within your house;
your children will be like olive shoots around your table.

6-8th grades

Psalm 127:4  Like arrows in the hands of a warrior
    are children born in one’s youth.

9-12th grades

Isaiah 40:31  but those who hope in the Lord will renew their strength.
They will soar on wings like eagles;they will run and not grow weary,they will walk and not be faint.