For the K category it wants you to fill in background information, for example, if you chose the Artificial Heart article. Have you read any stories or seen any movies about this topic? Have you met anyone with a heart transplant? The P category wants you to predict. What kind of information do you think you'll get from this topic? What do you think the authors purpose was? The L category is basically asking what you learned and how your predictions compared to the actual article.
