Identifying Complete and Incomplete Sentences

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Grade Level
Elementary School
Length of Time
45 minutes to 1 hour

In this lesson, students will identify the sentences that are complete or incomplete. They will rewrite the incomplete sentences.

This lesson is for third through fifth graders.


Students will learn:
To identify complete and incomplete sentences.

Materials Needed

Worksheet I have included in this lesson
Pencils and erasers


First, you will copy the worksheet.

Then, you will explain to the students about complete and incomplete sentences. You can do this by writing examples on the board.

Example: Christy is an amateur detective. - This is a complete sentence

Example: When we went to the store. - This is an incomplete sentence.

Show them how to make a complete sentence out of the incomplete sentence.

After that, you will pass out the worksheet for them to do independently.Worksheet - Identifying Complete and Incomplete Sentences

Directions: In the following sentences, write complete for each complete sentence. If the sentences are incomplete, then rewrite them so they will be a complete sentence.

1. Tom and Cindy, who went to the movie.

2. Christy, who has long brown hair.

3. Sadey likes to chase Cassie in the yard.

4. The basketball team, who won the tournament.

5. Because she went downstairs. 6. While she did the laundry. 7. The birds flew into the woods.

8. The wind blew stronger today. 9. When the principal announced the assembly.

10. The herd of buffalo scattered over the land. 11. Because the movie was too scary.

12. Connie, can you come over to play?

13. Take your books to your room.

14. The wind blew after.

15. We can go when I get paid. 16. When we went to the mall.

17. As I walked down the street.

18. Since we cleaned our room.

19. Megan and Christy are amateur detectives.

20. Megan would like to have a mystery book club.


Each one is worth five points for a total of 100 points.

100 to 90 = A

89 to 80 = B

79 to 70 = C

69 to 60 = D

Below 60 = F

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