Travel should not be free, but it also shouldnt cost a lot. It shouldnt be free because then some places could become over crowded or people could take advantage of things. (i feel like this,idk about you but eh)
The textbook section that would you use to identify the books and articles the author used or referred to in writing the book is bibliography.
Answer: Anne Frank was a teenage Jewish girl who kept a diary while her family was in hiding from the Nazis during World War II. For two years, she and seven others lived in a "Secret Annex" in Amsterdam before being discovered and sent to concentration camps. Her words resonate with people all around the world.
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.