In the school

Tools

tablet with scratch app

Step  1 : creating the scene and the objects

Delete the cat

Choose the class background that looks like a class at school  

Add a student and teacher figures

Step  2 : Create a dialogue between the teacher and the student

Teacher:

Use the conversation bubble to ask the first question

then send orange color massage

Student:

Starts her dialogue once she receives the orange massage

Use the conversation bubble to let the student answer the question

then send a red message 

Teacher:

Ask the second question once he receives the red message

then send a green massage when it's done

Student:

Answer the second question when getting the green message

Each time, the character begins to speak when a message arrives, and once he/she answered, he/she sends a message with different color to the second character.

in this way we can guarantee the logical sequence of the conversation between the two characters.