Choosing and using teaching and learning materials. According to the article, in preschools and schools, materials are an essential part of curriculum planning; children and students reach into contact with visual and multimedia materials all the time. In my opinion, the use of these technological materials are quite common in United States Institutions; they prefer that their students learn using technology like, computers, tablets, smart boards, smart phones, online resources, and more. What is more, they prefer that teachers design innovative materials that go along with the advances of technology. Anyway, principals and parents are very worried about those technological elements student’s use, they need to evaluate, select, and know how students access those materials in order to have some sort of control on their use.