Home›Lesson Plans›English Language Arts›Grammar · Grade 1

Complete Sentences: Capitals & Periods

First graders learn what makes a complete sentence — a capital letter at the start, a period at the end, and a whole idea in between — the first big step toward writing on their own.

Grade 1Writing45 minutes1 class periodReading WorkshopExplicit teaching4 StandardsCommon Core
Start the Lesson
Assign or share this lesson

Copy link works with Canvas, Schoology, Moodle and any other LMS — paste it in as a resource or assignment.

Lesson at a Glance

Everything you need before the bell rings

Learning Objectives

Students will be able to…

  • ✓Know a sentence tells a whole idea.
  • ✓Start a sentence with a capital.
  • ✓End a sentence with a period.
  • ✓Write a complete sentence.
Essential Question

“the cat” isn’t quite a sentence yet. What does a group of words need to become a real, complete sentence?

0
Lesson Phases
0
Vocabulary Terms
0
Standards Aligned
0
Interactive Task
Explore · Interactive Model

Complete or Not?

Project each item and have students choose the complete sentence. The tool explains capitals, periods, and whole ideas.

✅ Which one is a complete sentence?Try it
Choose the complete, correctly written sentence.
The Lesson · Reading Workshop (Mini-Lesson · Practice · Share)

45 minutes, five moves

Tap any phase to open the teacher moves and student actions.

1

Connect — Almost a Sentence

5 min

Is “the cat” a sentence yet? What is missing?

👩‍🏫 Teacher Moves

  • Show an incomplete group of words.
  • Ask what it needs.
  • Set the goal: complete sentences.

🎒 Student Actions

  • Read the words.
  • Find what’s missing.
  • Predict the idea.
2

Teach — Capitals & Periods

10 min

Teacher models.

👩‍🏫 Teacher Moves

  • Start with a capital letter.
  • Tell a whole idea.
  • End with a period.

🎒 Student Actions

  • See the capital.
  • Hear the whole idea.
  • See the period.
3

Active Engagement — Check Together

12 min

Class uses Complete or Not?

👩‍🏫 Teacher Moves

  • Pick the complete sentence.
  • Find the capital and period.
  • Fix a broken one.

🎒 Student Actions

  • Pick the right one.
  • Find the parts.
  • Fix one.
4

Practice — Practice

13 min

Students write sentences.

👩‍🏫 Teacher Moves

  • Fix sentences (capital + period).
  • Write a complete sentence.
  • Check their work.

🎒 Student Actions

  • Fix sentences.
  • Write one.
  • Check it.
5

Share — Share

5 min

Students share a sentence.

👩‍🏫 Teacher Moves

  • Invite a sentence.
  • Check capital and period.
  • Hand out the exit ticket.

🎒 Student Actions

  • Share it.
  • Check it.
  • Complete the exit ticket.
Standards Alignment

Built to the standards you report on

Aligned to the Common Core State Standards for English Language Arts.

CCSS
L.1.2a

Capitalize dates and names, and the first word in a sentence.

CCSS
L.1.2b

Use end punctuation for sentences.

CCSS
L.1.1j

Produce and expand complete simple sentences.

CCSS
W.1.5

With guidance, focus on a topic and strengthen writing.

Differentiation

One lesson, every learner

Multilingual Learners

ELL / EMERGING READERS
  • Model capital and period aloud.
  • Sentence frame: “A sentence starts with ___ and ends with ___.”
  • Fix sentences together.

Support & Access

IEP / 504
  • Start with fixing capitals.
  • Provide sentence strips.
  • Add the period together.

Stretch & Extend

GIFTED / EARLY FINISHERS
  • Write asking sentences (?).
  • Expand a short sentence.
  • Write two sentences.
Materials

What to gather

  • 📽️Projector / board
  • 📄Sentence strips
  • 💻Complete or Not?
  • 🖍️Pencils
  • 🔠Letter cards
  • 🎫Exit-ticket slips
Vocabulary

Key terms — hover for a quick definition

sentencewords that tell a whole ideacapital lettera BIG letterperiodthe dot that ends a telling sentencecompletefinished; a whole ideaideaa thoughtbeginningthe start of a sentenceendthe finish of a sentencepunctuationmarks like periods
Evaluate

Exit Ticket

Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.

QUESTION 1
What should every sentence start with?
A capital letter.
QUESTION 2
What does a telling sentence end with?
A period.
QUESTION 3
Is “ran fast” a complete sentence? Why or why not?
No — it doesn’t tell a whole idea (who ran?) and has no capital or period.

Growing at home? Sentence fix-up.

Have families write a silly group of words and let the child fix it into a complete sentence with a capital and a period. A printable sentence-writing page is in the ELA library.

Study · Flashcards

Study the key terms

Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.

🃏 Complete SentencesFlip
Card 1
Term
Tap to flip →
Meaning
0

Nice work!

Practice · Quiz

Check your understanding

A quick self-check with instant feedback, drawn from this lesson’s key terms.

📝 Complete SentencesQuiz
Score: 0
1 / 6
Question 1
0%

Nice work!

Practice · Worksheet

Printable worksheet

A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.

🖨️ Complete SentencesPrint
Name: ________________________
Date: ____________

Part A · Write the word that matches each meaning

Word bank: beginning, capital letter, complete, end, idea, period, punctuation, sentence
  1. a thought
  2. the start of a sentence
  3. the finish of a sentence
  4. marks like periods
  5. a BIG letter
  6. the dot that ends a telling sentence
  7. words that tell a whole idea
  8. finished; a whole idea

Part B · Show what you learned

  1. What should every sentence start with?
  2. What does a telling sentence end with?
  3. Is “ran fast” a complete sentence? Why or why not?
Answer key — Part A: 1) idea · 2) beginning · 3) end · 4) punctuation · 5) capital letter · 6) period · 7) sentence · 8) complete
Part B: 1) A capital letter. 2) A period. 3) No — it doesn’t tell a whole idea (who ran?) and has no capital or period.