Task: Question Answering
Input (English): Context: If you wish to become a better reader, here are four important things to remember about reading _ : * Knowing why you are reading or what you are reading to find out will often help you to know whether to read rapidly or slowly. * Some things should be read slowly throughout. Examples are directions for making or doing something, arithmetic problems, science and history books, which are full of important information. You must read such things slowly to remember each important step and understand each important ideas. * Some things should be read rapidly throughout. Examples are simple stories meant for enjoyment, news letters from friends, pieces of news from local, or home-town, papers, telling what is happening to friends and neighbors. * In some of your reading, you must change your speed from fast to slow and slow to fast, as you go along. You will need to read certain pages rapidly and then slow down and do more careful reading when you come to important ideas which must be remembered. 
 Question: Which should be read slowly according to the passage?
Output (English): arithmetic problems