In today's modern day, the need to manage evaluate and analyze public information is of great importance because information contains knowledge and whoever is the first to have accurate information has the edge over others. However, knowledge (and information) can also be used in the community to advance everyone in it. In view of the obviously crucial importance of correct information, it is in any case essential that this information is accurate, timely, understandable and accessible, but the mechanisms for recognizing such information should first be adopted and be started as soon as possible. High school age is a time when, thanks to puberty, children slowly cross the threshold of childhood and become adults. In such a sensitive period of their development, it is extremely important to establish a good foundation for information literacy, which is essential for the functioning of each individual and society as a whole. Today, this need is even more pronounced due to the great technological and media advances that require knowledge of information literacy and critical thinking. In the paper, through the theoretical description of information literacy standards and the practical part presented in Internet research, ideas and guidelines are given in order to achieve information literacy and critical thinking about information