In a pictogram, one icon stands for 10 students. How is 5 students shown?

1. All icons must be of the same size. 2. A fraction of an icon shows a fraction of the amount. 3. 5 is half of 10, so a half icon is drawn. A full or two icons would show 10 or 20, and a larger icon breaks the same-size rule. _Source: Wikipedia, Pictogram, In mathematics_