A fun game for 6-year olds to learn about complete sentences is by using a cut-out sentence game. Type five sentences on a document, but mix up the words. Have the children cut out the words and paste them on paper in the correct order to make each sentence complete. Ask the children to fill in the appropriate punctuation at the end of the sentence as well.
Teach students about sentence types using the game of Red Light, Green Light. On three separate posters, draw a period, exclamation point and question mark. Have the children play Red Light, Green Light. When the children stop, hold up one of the signs. If the sign is a period, the kids must stop. If it is a question mark, the kids stop, put their hands on their hips and act like they are thinking. If it is an exclamation point, the kids must jump up and down when they stop running. This game helps kids remember that complete sentences end with one of these three types of punctuation. It also helps remind them what each type means.
Make fill-in-the-blank games about complete sentences for children. Write five sentences that contain blanks that ask for specific sentence parts. For example, write "The ______ (noun) ______ (verb)!" Have the children choose words that fit. They can make serious or silly sentences with this game. To fill in the blanks, a student might write "The clown jumps!"
Make a game of true and false that contains sentences. Some are incomplete, others are complete; the children must write "true" for sentences that are complete and "false" for sentences that are not. For example, a sentence that is an incomplete sentence might say "When she ran." A complete sentence would be "When she ran, she fell down."