One of my favorite activities in class to practice a particular writing skill is to show a short video about a high-interest topic and then give the class a writing prompt after a class discussion. By far, the most engaging topic for this method is extreme sports. The videos are gripping, and everyone pays attention.
Here are two videos on YouTube about the topic that I like to show together. The first one is some amazing footage of people doing some extreme sports. The second explores the psychology behind it.https://www.youtube.com/watch?v=uAz9hZmcr58
In the class discussion, we talk about why people engage in these sports, but also the risk, the cost of rescue operations, and the legality of some of the stunts. This discussion always leads to arguments (in a good way!) and therefore, the prompts are easy: Should people be able to engage in high-risk sports in national parks? Should they be required to pay for search and rescue if they get in trouble? Should the deadliest sports be illegal or regulated? Why would someone want to engage in such a dangerous activity? Is the freedom to do what you want worth the risk to rescue personnel?
I think you'll find a lively discussion on this topic and some excellent written responses.
If you would like to add some reading to supplement the topic, click on the photos below for informational articles on extreme sports. The reading level is grades 5 - 8, but because of the subject matter, they are appropriate for high school students as well.