how to understand the punctuation mark

Punctuation marks are symbols like periods, commas, and question marks that we use in written language to help make our meaning clear. They are like traffic signs that show how to navigate the sentence. For example, a period ( . ) is like a stop sign. It tells the reader to pause and stop at the end of a sentence. A comma ( , ) is like a yield sign. It tells the reader to pause for a moment but keep moving forward. A question mark ( ? ) is like a detour sign. It tells the reader to pause and turn to a new direction. One fun fact is that the exclamation point ( ! ) is the oldest punctuation mark! It was used by ancient Greeks and Romans in their writing more than 2,000 years ago!