Start by freewriting your reactions and evaluations of the author's ideas. Try to put into words what you think the author is trying to do and whether you agree or disagree. Then ask yourself why, and explain why you think these things. Freewriting is a great way to start getting your ideas on paper and getting past that initial writer's block. When you finish, read back over what you've just written. Determine what your strongest and most convincing reactions are. Prioritize your points. Reaction papers have to be critical and have some evaluation of the text. Otherwise, you are just summarizing what you read. After freewriting, decide what your angle is. Keep asking yourself the same questions as you craft a coherent reaction. Think about why the author has written the article or story as they have. Why did he structure things in this particular way? How does this relate to the outside world? Now that you have completed your freewriting and found your angle, you can now shape this into an argument. What interesting thing do you have to say about what you just read? Start to state why what you said is interesting and important. This is the core of your reaction paper. Take all your points, opinions, and observations, and combine them into one claim that you will prove. This is your thesis. Your thesis will be one statement that explains what you will analyze, criticize, or try to prove about the text. It will force your reaction paper to remain focused. Your paper should follow basic essay format. It needs an introduction, body paragraphs, and a conclusion. Each body paragraph should directly support your thesis. In each body paragraph, you should be reacting to a different portion of the text. Organize your reactions together into a few common topics so you can write them into paragraphs. For example, if you are reacting to a theme in a book, you can split the paragraphs into how the setting, antagonist, and figurative imagery communicate the themes successfully or unsuccessfully. After you organize your ideas into paragraphs, you need to find quotations that will support your points. You must back up your claims with evidence from the text. Look at your annotations for quotations that support your thesis. Draft paragraphs that introduce quotations, analyze them, and comment on them. Your paragraphs should always start with a topic sentence. Then you have to decide how to structure your paragraph. You can start with what the author says and follow that with your reaction. Or you can start with the author and then follow with how your reaction contrasts. You generally want to start with what the author says first and follow it with your reaction. A good way to think about structuring your paragraph is: detail, example/quotation, commentary/evaluation, repeat.
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One-sentence summary -- Freewrite. Decide on your angle. Determine your thesis. Organize your paper. Gather quotations. Structure your paragraphs.

Maine Coons are susceptible to many dangers, like cars or predators, when they go outdoors. In addition to this, Maine Coons are a large and beautiful breed that are expensive to purchase. While it's rare, people do steal Maine Coons they see outdoors. For your cat's safety, keep it as an indoor cat only. A clean litter box is important to any cat. Maine Coons in particular, due to their long hair, require a clean litter box. Debris from litter can easily get caught in their fur, so clean your litter box daily. Each day, scoop any feces or clumps of urine out of the litter box and add a small amount of fresh litter. Swap the litter out completely once every two to three weeks. When you do so, make sure to scrub out the inside of the box and let it dry before replacing the litter. Maine Coons are one of the most social cat breeds. They do not do well without daily attention. Make sure to give your Maine Coon plenty of love to keep it happy. Maine Coons may follow you around. You can pet them on occasion, but if you're busy they're generally happy to observe you. It's a good idea to pet them and snuggle at the end of the day, when you have time. In addition to keeping your cat active, playing can help you bond with your Maine Coon. Maine Coons, due to their friendly demeanor, generally do well with young children. However, interaction should be supervised. Maine Coons are tolerant of children, as long as kids are taught to handle them gently. Encourage your kids to treat your cat with respect. Let them know they should only handle your cat when it comes to them and should not attempt to grab or restrain a Maine Coon. Young children may sometimes try to dress up an animal, or place it in a toy like a toy high chair or stroller. Maine Coons are more tolerant of this behavior than many house cats, but you should still keep an eye on your kids when they play with your Maine Coon. Make sure the cat does not seem aggressive or frightened during play.
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One-sentence summary --
Keep your cat indoors. Make sure you maintain a clean litter box. Give your Maine Coon plenty of attention. Monitor your Maine Coon's interaction with children.