## 3 AR Geography Applications
### AR App for 6 th Grade: Earth as a Living Space for Humans
In addition, a button \"Return to port\" appears on the bottom of the screen, and by pressing it, the existing panel disappears, and the ship starts traveling from its current position back to the position of the port. The next mini game is a quiz that gives the pupil the opportunity to test his/her knowledge (Figure 15). After scanning the image, random questions from a pre-set list appear on a school board. The list contains 17 questions in total, but in every quiz, 10 of them are randomly selected. The pupil chooses the correct answer between three or four options, depending on the question. On the bottom right of the screen, the score gets updated in real-time whenever the pupil answers a question. After answering all questions, a panel pops up providing the final score and a relative feedback message. The pupil has the opportunity to retry the test with different questions by pressing the \"try again\" button on the bottom left which appears simultaneously with the feedback. The third game is from the chapter \"Earth as a place of Human Life\" and consists of three activities/mini games. In the first activity, after scanning the corresponding image, a 3D world map augments the real map which is located in the textbook (Figure 16). It is color coded to represent the population density (people per km\({}^{2}\)) for each country. On the bottom left of the screen, the pupil can only see the colors that represent each population range in millions (Light Green is 1-50, Yellow is 50-100, Blue is 100-200, Orange is 200-300, Red is 300+ and White is countries with no data), since it is not an interactive activity. The second activity is kind of similar to the previous one (Figure 17). It is a 3D world map that represents the population of continents throughout the years. The data are drawn from a table that exists in the textbook stating the year and all the continent's population at this time. In this activity, there is also a slider with which the pupil changes the currently selected year and sees the colors of the map change based on the population at the time. Again, on the bottom left of the screen, the pupil can see the colors that represent each population range in millions (White is 0-400, Light Green is 400-800, Yellow is 800-1200, Blue is 1200-2000, Orange is 2000-3000, Red is 3000). Figure 16: The activity “Population Density Map” of the game “Earth as a place of Human Life”. Figure 15: The mini game “Quiz” of the game “Natural Environment”. The last mini game of the third game is a quiz (Figure 18). There is a list of 14 questions, out of which 10 are drawn randomly each time. The differentiation of this quiz from the previous one is that the answers are represented by 3D objects. There are four possible answers for each question and the pupil must select one of them. After the pupil answers all 10 questions, a panel pops up containing feedback depending on the final score. Finally, the fourth game is based on the chapter \"Continents\" (Figure 19). After scanning the image from the textbook, the 3D model of the world map is revealed along with an air balloon. The purpose is to learn useful information about some countries. First, the dropdown list contains 14 countries. The pupil chooses one of these countries and then clicks on the \"Travel\" button, next to the dropdown list, to see the air balloon travel to the chosen destination. Once the air balloon reaches the destination, useful information about the chosen country is displayed on a panel, such as the flag of the country, the capital, the population, and a photo collage of some of its most well-known sights. Then, the same process can be repeated for another country. Figure 17: The activity “Population of Continents throughout the years” of the game “Earth as a place of Human Life”: World map colored in the year 1760 (**left**) and World map colored in the year 1975 (**right**). Figure 18: The mini game “Quiz” of the game “Earth as a place of Human Life”.