Cut out and order the images of the Catholic Mass parts.

To solve this problem, we need to put the pictures in the order that things happen during a Catholic Mass. Let's look at what each picture represents and when it usually happens.

Step 1: Identify the pictures
* Picture 1: Shows a church building. This represents arriving at church or the beginning of the service.
* Picture 2: Shows a Bible with a cross on it. This represents the Liturgy of the Word, where readings from the Bible are shared.
* Picture 3: Shows a chalice (cup) and a host (bread). This represents the Eucharist (Communion), which is the most important part of the Mass where Catholics believe they receive Jesus.
* Picture 4: Shows a crucifix (Jesus on the cross) and musical notes. This often represents the end of the Mass, sending people out to share the message, or sometimes singing hymns throughout, but in sequence activities, it often signifies the conclusion or the focus on Christ's sacrifice remembered at the end. However, let's look at the standard simple order taught to children.

Step 2: Determine the logical order
A typical simplified order for a child's understanding of Mass is:
1. Gathering/Introductory Rites: You go to church. (Picture 1: The Church)
2. Liturgy of the Word: You listen to stories from the Bible. (Picture 2: The Bible)
3. Liturgy of the Eucharist: You have Communion. (Picture 3: The Chalice and Host)
4. Concluding Rites: You leave to go out and be like Jesus. (Picture 4: The Crucifix and Music/Sending forth)

Let's double-check this order.
* First, you enter the Church (1).
* Then, you listen to the Bible readings (2).
* Next, you participate in the Eucharist/Communion (3).
* Finally, the Mass ends with a blessing and sending forth, often symbolized by the Crucifix (reminding us of Jesus' love) and song (4).

So the correct numerical order is 1, 2, 3, 4.

Wait, let me re-evaluate Picture 4. Sometimes the crucifix is associated with the beginning (Sign of the Cross) or the middle. But looking at standard "Parts of the Mass" worksheets for this age group:
1. Entrance/Gathering: Represented by the Church (1).
2. Word: Represented by the Bible (2).
3. Eucharist: Represented by the Chalice (3).
4. Sending Forth/Conclusion: Represented by the Crucifix/Music (4).

This seems the most logical progression for a beginner.

Let's consider if Picture 4 could be first. Do you start with the Crucifix? You make the sign of the cross, but you physically go to the church first.
Let's consider if Picture 4 is second. No, the Bible readings come before Communion.
Let's consider if Picture 4 is third. No, Communion is the peak.

The standard four-part structure taught is often:
1. Introductory Rites (Church/Gathering)
2. Liturgy of the Word (Bible)
3. Liturgy of the Eucharist (Chalice)
4. Concluding Rites (Cross/Sending)

Therefore, the order is 1 -> 2 -> 3 -> 4.

Final Answer:
The correct order is: 1, 2, 3, 4