Grammaropolis
The Sentence Factory

Complete Sentences

A sentence needs a who and a what they do, a capital letter to start, and an end mark to stop.

Start the lesson →

Preview how it deepens, Grades 1 through 8.

subject + predicate + complete thought See it · tap a half
Try it on the line

Build one yourself.

Pick one chip at each station and snap them together. The Mayor inspects the finished sentence, a quick taste of how the parts combine.

1 · Nelson's office · the subject

2 · Vinny's stage · the predicate

3 · The Mayor inspects
Pick a who, then a what they do.
✓ Complete sentence · approved
Keep going in the Arcade · free, plays daily
Sentence Surgeon · revising sentences
Sentence Surgeon

A change order drops: make it plural, give it an adverb, swap in a pronoun. Re-tool the sentence and roll it back onto the line.

Play Sentence Surgeon →
Garbage Sentences · syntax vs. meaning
Garbage Sentences

Slang builds a sentence that follows every rule of grammar and still means nonsense. Catch which rule he really broke, and let the Mayor judge.

Play Garbage Sentences →
Watch for

Two complete thoughts need a real boundary.

Run-on

Two complete thoughts are jammed together with no boundary. Each half could stand alone, so they need a period, a semicolon, or a joining word between them.

Fixed

Give each complete thought its own space, and the sentence is clear.

The crew on this station

The characters host. The sentence is the star.

Nelson portrait
Nelson
introduces the subject
Vinny portrait
Vinny
drives the predicate
The Mayor portrait
The Mayor
inspects the sentence
What you'll learn

The same concept, deeper every grade.

Complete Sentences runs the length of the Factory, Grades 1 through 8. The lesson meets the standard at each grade, across all four frameworks.

Grade 1 A sentence needs a who and a what they do, a capital letter to start, and an end mark to stop. CCSS L.1.1.J
Grade 2 A sentence needs a who and a what they do, a capital letter to start, and an end mark to stop. CCSS L.2.1.F
Grade 3 A complete sentence needs a complete thought (a subject and a predicate), a capital letter to start, and an end mark to finish. CCSS L.3.1.I
Grade 4 A complete sentence needs a complete thought (a subject and a predicate), a capital letter to start, and an end mark to finish. CCSS L.4.1.F
Grade 5 A complete sentence needs a complete thought (a subject and a predicate), a capital letter to start, and an end mark to finish. CCSS L.5.1
Grade 6 A complete sentence needs a complete thought that stands on its own, a capital letter to open it, and an end mark to close it. CCSS L.6.1
Grade 7 A complete sentence needs a complete thought that stands on its own, a capital letter to open it, and an end mark to close it. CCSS L.7.1
Grade 8 A complete sentence needs a complete thought that stands on its own, a capital letter to open it, and an end mark to close it. CCSS L.8.1