 Part of learning about measurement is comparing things by length. One way to help a child is with some sticks of various lengths. You can ask the child which one is longest and which is shortest. Then they can line them up in order from shortest to longest. You can mix up the sticks and ask the child to put them in order from longest to shortest. You can also do this with pieces of string, pencils or other things of various lengths. Comparing lengths not only helps the child learn about measurement but also develops their logical thinking.