Girl skipped cheerfully on her way to school.

Meaning: This means that the girl was happy on her way to school.

Choice of Words: Skipped means to move in a light and springy way. Cheerfully means in a cheerful manner. School is a place where children go to learn. When you put them together, it means the girl moved in a light and springy way in a cheerful manner on her way to a place where children go to learn.