You will learn
- Say what makes a complete sentence.
- Write a sentence with capital and end mark.
- Fix fragments and run-ons.
- Write clear sentences about a topic.
Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.
Student lesson
- Start with a capital letter.
- Include a subject and predicate.
- Make complete sense.
- End with . ? or !
Words to know
a group of words that makes complete sense
part of a sentence
sentences joined without punctuation
a full stop, question mark or exclamation mark
1. Discover: Ama writes about her dog
Ama writes: my dog. Her teacher says, “That is a fragment. What does your dog do?” Ama writes: My dog runs in the garden. “That is a complete sentence!” says the teacher. Then Ama writes My dog runs he jumps he barks. “That is a run-on,” says the teacher. “Let us split it.”
Think: How did Ama fix her writing?
2. Understand: Writing complete sentences
Idea 1: Parts of a sentence
A complete sentence has a capital letter, a subject, a predicate and an end mark.
Idea 2: Fragments
A fragment is missing a part: my dog (no predicate) or runs fast (no subject). Add the missing part.
Idea 3: Run-ons
A run-on joins sentences without punctuation. Split it: My dog runs. He jumps. He barks.
3. Worked examples
Example 1 (I show you): Fragment
Fix: my dog.
- Add what it does.
Answer: My dog runs.
Example 2 (We do it together): Run-on
Fix: The sun is hot I am thirsty.
- Split it.
Answer: The sun is hot. I am thirsty.
Example 3 (You try): Check
Is Runs fast complete?
Show the steps and answer
- Subject?
Answer: no
Did you know?
Authors sometimes use fragments on purpose, but we practise complete sentences first.
Why this matters
Complete sentences make your writing clear.
4. Explore: Fix it
Fix fragments and run-ons.
- Read the text.
- Find the problems.
- Fix each.
- Read aloud.
Think about it: what did you notice?
You can fix sentences.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- A sentence starts with a ___.
- It has a ___ and a predicate.
- It ends with a ___.
- I fix a fragment by ___.
Guided practice
Question 1. Is The dog a sentence?
no
Question 2. Fix: The cat.
The cat sleeps.
Question 3. Split: I ran I jumped.
I ran. I jumped.
Independent practice
Level 1: Start
- A sentence starts with a ___ letter.
- It ends with an ___ mark.
- Part of a sentence is a ___.
- Sentences joined wrongly are a ___.
- A sentence makes complete ___.
Level 2: Grow
- Fix: runs fast.
- Fix: The big dog.
- Split: I like rice I like beans.
Level 3: Stretch
- Why fix fragments?
- What fixes a run-on?
- Write a complete sentence.
Answers are in the answer key below. Try first, then check.
6. Apply: English in everyday life
Write five complete sentences about your day.
Show a sample answer
five sentences
Another one. Fix three fragments.
Show a sample answer
fixed
7. Common mistakes
Fix: Start with a capital.
Fix: Add one.
8. Lesson summary and revision card
- I can say what a complete sentence is.
- I can write one.
- I can fix fragments and run-ons.
- I can write clearly.
9. Check and master
Answer all 14 questions. You will see feedback after each one.
Your result appears here after you answer every question.
10. Key takeaways
- Start with a capital.
- Include subject and predicate.
- End with a mark.
- Fix fragments and run-ons.
11. Next lesson
Next lesson: Combining sentences. Keep going with the next idea in this course.
Exam practice
These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.
- What does a complete sentence need? [3 marks]
- Fix: my dog. [1 mark]
- Fix: I ran I jumped. [1 mark]
- What is a fragment? [1 mark]
- Explain how to write a complete sentence. [3 marks]
Total: 9 marks.
Marking guide and model answers
- capital letter [1]; subject and predicate [1]; end mark [1]
- My dog runs. [1]
- I ran. I jumped. [1]
- part of a sentence [1]
- start with capital [1]; include subject and predicate [1]; end with a mark [1]
Score guide: 8 to 9 = secure. 6 to 7 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.
Printable worksheet
- A sentence starts with a ___.
- It ends with an ___ mark.
- Part of a sentence is a ___.
- Fix: runs fast.
- Fix: my dog.
- True or false: a fragment is complete.
- True or false: a sentence has a subject.
- Split: I ran I jumped.
- Write a complete sentence.
- Write a sentence about your day.
Homework
Write five complete sentences.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. A sentence starts with a ___. | capital letter | 1 |
| 2. It ends with an ___ mark. | end | 1 |
| 3. Part of a sentence is a ___. | fragment | 1 |
| 4. Fix: runs fast. | Kofi runs fast. | 1 |
| 5. Fix: my dog. | My dog runs. | 1 |
| 6. True or false: a fragment is complete. | false | 1 |
| 7. True or false: a sentence has a subject. | true | 1 |
| 8. Split: I ran I jumped. | I ran. I jumped. | 1 |
| 9. Write a complete sentence. | The bird sings. | 1 |
| 10. Write a sentence about your day. | I went to school. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 capital; 2 end; 3 fragment; 4 run-on; 5 sense. Level 2: 1 Kofi runs fast.; 2 The big dog barks.; 3 I like rice. I like beans.. Level 3: 1 make sense; 2 split; 3 The bird sings..
Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.
Mastery and remediation
| Objective | Bronze (Developing) | Silver (Proficient) | Gold (Advanced) |
|---|---|---|---|
| O1 Say what makes a complete sentence | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O2 Write a sentence with capital and end mark | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O3 Fix fragments and run-ons | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O4 Write clear sentences about a topic | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.
If a learner struggles
- Find the misconception: No capital. Start with a capital.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Use sentence frames.
- Guided practice: work through one example together and let the learner try the next one.
- Reassess: use the quiz again or the worksheet.
- Move on when the learner shows Silver-level evidence independently.
For parents and guardians
In this lesson your child writes complete sentences. You do not need to be an expert to help.
- Read their sentences.
- Check capitals.
- Praise clear writing.
- Ask “how do you know?” after each answer, and listen.
- Praise effort, not only right answers. Mistakes are how we learn.
- Ten to fifteen minutes a day is better than one long session.
Teacher package
1–5. Objectives, prerequisites, materials, preparation, duration
Lesson objectives. Learners will: say what makes a complete sentence; write a sentence with capital and end mark; fix fragments and run-ons; write clear sentences about a topic.
Prerequisite knowledge. Grade 1 writing skills.
Materials. Chart paper or board, pencils, picture or word cards, a reading book if available. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.
Preparation. Write the key words and examples on the board or on cards before the lesson.
Suggested duration. 45–60 minutes. It can be split into two shorter sessions.
6–9. Teaching procedure, explanation notes, guided and independent activities
Introduction (5 min). Review sentences.
Explanation (10 min). Teach complete sentences.
Guided activity (10 min). Practise.
Independent activity (10 min). Check.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. Is it complete? Does it start with a capital?
Teacher explanation notes. Move from the spoken word to pictures and then to print. Read aloud often, point to the words, and let learners hear and say before they read and write.
10–12. Differentiation, formative assessment, common misconceptions
Support. Use frames. Extension. Write longer sentences.
Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.
Misconceptions. No capital. Start with a capital.
13–15. Assessment questions, answer keys, marking scheme
Use the quiz, the 9-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.
16–19. Remediation, enrichment, homework, teacher reflection
Remediation. Use sentence frames. Enrichment. Write longer sentences. Homework. See above.
Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.
Sources and standards
This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: Common Core State Standards for English Language Arts, Cambridge Primary and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.
Official standards for this topic area. Common Core State Standards for English Language Arts (official site): Grade 2 » Writing; Grade 2 » Language. These pages list the standards that cover this topic area; read them alongside the lesson.
Research used to shape this lesson. Common Core L.2.1f and W.2.5 (with guidance and support from adults and peers, focus on a topic and strengthen writing as needed by revising and editing); Cambridge Primary English Stage 2 (writing). These sources informed the lesson.