What Makes a Sentence

A sentence is a whole thought that starts with a capital and ends with a mark.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 6

A sentence is a whole thought. It tells who, and what they do. The dog runs.
The dog is only part of a thought. What does the dog do? We need more words.
A sentence starts with a capital letter, a big letter. It ends with a mark, like a period.
Some sentences ask a question, so they end with a question mark. Some show big feelings, so they end with an exclamation mark.
Try it with a grown-up! Take turns saying a whole sentence about something you see.

Georgia's K-12 English Language Arts Standards:

K.F.CP.3.c — Understand that sentences begin with capital letters and end with punctuation to indicate the end of a sentence.
K.F.PA.2.a — Know words are put together to make sentences, and sentences communicate complete thoughts.
K.L.GC.2.a — Recognize that conventional sentences always include a subject and a predicate. (I)