Please forward this error screen to 209. During their third year, many children can tell their age and hold up that pre kindergarten activity books fingers to demonstrate.
During the fourth year, many can accurately count up to five items, some can count up to 10, and a few can count to 20. Many four-year-olds can tell what number comes after a given number in a sequence up to 10. Given two numbers between one and 10, many five-year-olds can tell which of the two is larger. By the fifth year, they can accurately use the words in a sentence.
Many four-year-olds will naturally make shapes that show symmetry without necessarily understanding the concept. For example, they might make a structure with blocks where one side of the structure is identical to the other because it appeals to them. When asked, some four- and five-year-olds can copy a shape from memory after looking at it for several seconds. Some four- and many five-year-olds can use a simple, two-dimensional picture map to find an object hidden in an actual, three-dimensional room. During the third and fourth years, many children figure out how to compare two different objects. They might take two pencils and put them side by side and then tell you which is longer. Or, if you give them another item, they will have more.