Final answer:
The sentence 'Although Wolf Cokier was a high school student from New York, he also wanted to do something fun.' can replace sentence 5 to help build a more effective controlling idea for this paper.
Step-by-step explanation:
The sentence 'Although Wolf Cokier was a high school student from New York, he also wanted to do something fun.' can replace sentence 5 to help build a more effective controlling idea for this paper. This sentence maintains the information about Wolf Cokier being a high school student from New York, while also highlighting his desire to have fun.