This lesson is taken directly from the Family Formation 1st Communion Workbooks that your child will use in preparation for !st communion.
Adoration:
We can know Jesus more fully through the Eucharist. Read the story of the two travelers on the road to Emmaus in Luke 24: 13-35. The travelers did not know they were speaking to Jesus until He blessed the bread and broke it. At that point, they realized it was Jesus with them. Just as Jesus was revealed in the breaking of the bread at Emmaus, so is He revealed in the Eucharist. We can see and know Jesus more clearly in the Eucharist.
We can also see and know Jesus through adoration of the Holy Eucharist outside of Mass. For adoration, a large consecrated Host is placed in a holder with a glass window in the center called a monstrance. The monstrance is put on display for people to adore the Eucharist, usually in a church or chapel. 
During adoration, we are blessed to spend time with Jesus who is present under the appearance of the host. Some churches have perpetual adoration. This means that both night and day, seven days a week, someone is at church spending time with Jesus. Even while you are sleeping! Many churches have adoration.In the Cathedral of Lugo in Spain, there has been this type of adoration for more than 1,000 years.
There are many good reasons to go to adoration. Visiting Jesus in an adoration chapel is a way to thank God for saving us from our sins, to ask Him for the constant help we need, and to show Jesus how grateful we are that He is always present with us through the Eucharist.
During the time in Jesus’ presence, you may pray, read your Bible, pray the rosary, or just sit and enjoy the peace that comes from being with God. The adoration chapel is a very quiet place. It’s important not to interrupt others’ prayers by talking out loud or making noise that will disturb them.
Remember that Jesus is happy you have taken the time to be with Him in this special way.
Spiritual Communion:
There may be times when, for various reasons, you are not able to
receive Jesus in Communion (e.g. You have not fasted for at least one hour, you have committed a serious sin and need to go to Confession before receiving Holy Communion again, etc.) However, you may desire, with all your heart, that you could. A deep desire to receive the Blessed Sacrament is called a Spiritual Communion. You might want to say a prayer such as this one:
My Jesus, I love you above all things, and I desire to receive You into my soul. Since I cannot at this moment receive You sacramentally, come at least spiritually into my heart. I embrace You as if You were already there and unite myself wholly to You . Never permit me to be separated from You. Amen.