How to write an argumentative text...

Today we started to write an argumentative text together in groups. We will continue on Friday.
When you have finished the texts that you have written together you are going to write on your own.
Think of something that you don't like and would like to change. For instance:
Homework should be forbidden or Should schools offer cash bonuses for good test scores? You need to find arguments for and against. You can talk to someone at home or google ! Then you start writing. Here you can find an example of an argumentative text that a pupil in year 7 has written: Refugees welcome?

Here is the picture we worked with. Use the picture to help you, but don't answer the questions one by one.