You could use the cardboard box as a model child labor factory, while using the markers and paper to draw children. You can cut them out and place them in the factory like pop-ups. Then you can add some captions explaining what you need to. Just make sure the cardboard factory and children portray the negatives. I hope this helps.
Since pathos is an emotional appeal to the audience. so in this case to convince someone to donate money for a park, you could tell them stories about children who do not have parks to play at or a vision of all of the happy children playing at the park. Really anything that is going to evoke some kind of emotion out of the reader/viewer
The four parts of this conversation between two classmates indicate Frank's goals are:
"Well, I’ve only been an average student in high school, but I’m excited about college because I can choose all of my own classes."
"I want to work in cyber security. So, I’m going to work with the counseling staff at my college to make sure I’m taking the correct courses. " "I also want to get involved in soccer."
"I figure I can stay in shape and meet some new people that way."
Based on the NPR series of the same name, This I Believe features 80 Americans--from the famous to the unknown--completing the thought that begins with the book's title. The pieces that make up the program compel listeners to re-think not only what and how they have arrived at their own personal beliefs,