Courseversity

Lesson

Compound sentences

Primary EducationGrade 6English & Language ArtsCV-PRI-G06-ELA-U05-L0345–60 min

You will learn

  • Use FANBOYS.
  • Use a semicolon.
  • Place commas.
  • Avoid run-ons.

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

The lesson in 60 seconds

  1. Write two independent clauses.
  2. Choose the joiner.
  3. Punctuate.
  4. Check for run-ons.

Words to know

coordinating conjunction
a joining word such as for, and, nor, but, or, yet, so
semicolon
a punctuation mark joining related independent clauses
run-on sentence
clauses joined without correct punctuation
comma splice
two clauses wrongly joined by only a comma

1. Discover: Joining sentences

Ayo writes: “I wanted to play, but it was raining.” The coordinating conjunction but joins two clauses, with a comma before it. He also writes: “The rain was heavy; we stayed inside.” The semicolon joins two related clauses.

Wrong: “The rain was heavy, we stayed inside.” This is a comma splice. Wrong: “The rain was heavy we stayed inside.” This is a run-on sentence.

Think: How can each error be fixed?

2. Understand: Joining clauses correctly

Idea 1: FANBOYS

The coordinating conjunctions are for, and, nor, but, or, yet, so. Put a comma before them when joining clauses.

Idea 2: Semicolon

A semicolon joins two closely related independent clauses.

Idea 3: Errors

Avoid the comma splice and the run-on sentence.

Remember: Join independent clauses with a comma and a coordinating conjunction, or a semicolon; avoid splices and run-ons.

3. Worked examples

Example 1 (I show you): Join

Which joiner is used?

  1. But.

Answer: but

Example 2 (We do it together): Semicolon

What does the semicolon do?

  1. Joins.

Answer: joins two related independent clauses

Example 3 (You try): Error

What is the comma splice?

Show the steps and answer
  1. Comma only.

Answer: two clauses joined by only a comma

Did you know?

FANBOYS is a memory trick for the seven coordinating conjunctions.

Why this matters

Correct compound sentences avoid common mistakes.

4. Explore: Join them

Write compound sentences.

  1. Write two related sentences.
  2. Join with and, but or so.
  3. Join with a semicolon.
  4. Check punctuation.
Think about it: what did you notice?

You can write compound sentences.

5. Practise

Say it in a sentence

Use these starters when you talk about the lesson. Say them out loud.

  • The first clause is ___.
  • The joiner is ___.
  • The second clause is ___.
  • The punctuation is ___.

Guided practice

Question 1. A joining word like but is a ___ conjunction.

coordinating

Question 2. A mark joining related clauses is a ___.

semicolon

Question 3. Clauses joined without punctuation is a ___ sentence.

run-on

Independent practice

Level 1: Start

  1. A joining word like but is a ___ conjunction.
  2. A mark joining related clauses is a ___.
  3. Clauses joined without punctuation is a ___ sentence.
  4. Two clauses joined by only a comma is a comma ___.
  5. I wanted to play, but it was ___.

Level 2: Grow

  1. Which conjunction joined the clauses?
  2. What punctuation comes before but?
  3. What joins related clauses without a conjunction?

Level 3: Stretch

  1. Is FANBOYS seven words?
  2. Is a comma splice correct?
  3. Can a semicolon join clauses?

Answers are in the answer key below. Try first, then check.

6. Apply: English in everyday life

Write three compound sentences using different joiners.

Show a sample answer

three sentences

Another one. Write a compound sentence for a family member using a semicolon.

Show a sample answer

a completed task

7. Common mistakes

Mistake: Rushing without checking.
Fix: Slow down and check your work.
Another mistake: Skipping the worked example.
Fix: Study the example first, then try.

8. Lesson summary and revision card

I can…

  • I can use FANBOYS.
  • I can use a semicolon.
  • I can place commas.
  • I can avoid run-ons.

9. Check and master

Answer all 14 questions. You will see feedback after each one.

1. But is a ___ conjunction.

2. A semicolon joins related ___ clauses.

3. A run-on sentence lacks proper ___.

4. A comma splice uses only a ___.

5. Which is FANBOYS?

6. Which is correct?

7. Which uses a semicolon correctly?

8. Which is a comma splice?

9. Which is a run-on?

10. What goes before a joining conjunction?

11. How can a splice be fixed?

12. Why punctuate carefully?

Challenge 1. Which is correct?

Challenge 2. Which is a run-on?

Your result appears here after you answer every question.

10. Key takeaways

  • Write two independent clauses.
  • Choose the joiner.
  • Punctuate.
  • Check for run-ons.

11. Next lesson

Next lesson: Complex 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.

  1. List four coordinating conjunctions. [2 marks]
  2. Write a compound sentence with a semicolon. [2 marks]
  3. Define comma splice. [1 mark]
  4. Correct: The rain stopped we left. [2 marks]
  5. Explain how to write a compound sentence. [3 marks]

Total: 10 marks.

Marking guide and model answers
  1. for, and, nor [1]; but, or, yet, so [1]
  2. two independent clauses [1]; joined by a semicolon [1]
  3. two clauses wrongly joined by only a comma [1]
  4. a comma and conjunction or semicolon added [1]; both clauses kept complete [1]
  5. write two independent clauses [1]; choose a joiner [1]; punctuate correctly [1]

Score guide: 9 to 10 = secure. 6 to 8 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.

Printable worksheet

  1. A joining word like but is a ___ conjunction.
  2. A mark joining related clauses is a ___.
  3. Clauses joined without punctuation is a ___ sentence.
  4. Two clauses joined by only a comma is a comma ___.
  5. I wanted to play, but it was ___.
  6. Which conjunction joined the clauses?
  7. What punctuation comes before but?
  8. What joins related clauses without a conjunction?
  9. Is FANBOYS seven words?
  10. Is a comma splice correct?

Homework

Write a compound sentence for a family member using a semicolon.

Answer key and marking scheme

Question Expected response Marks
1. A joining word like but is a ___ conjunction. coordinating 1
2. A mark joining related clauses is a ___. semicolon 1
3. Clauses joined without punctuation is a ___ sentence. run-on 1
4. Two clauses joined by only a comma is a comma ___. splice 1
5. I wanted to play, but it was ___. raining 1
6. Which conjunction joined the clauses? but 1
7. What punctuation comes before but? a comma 1
8. What joins related clauses without a conjunction? a semicolon 1
9. Is FANBOYS seven words? yes 1
10. Is a comma splice correct? no 1
Total 10

Independent practice answers. Level 1: 1 coordinating; 2 semicolon; 3 run-on; 4 splice; 5 raining. Level 2: 1 but; 2 a comma; 3 a semicolon. Level 3: 1 yes; 2 no; 3 yes.

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 Use FANBOYS 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 Use a semicolon 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 Place commas 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 Avoid 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

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

  1. Find the misconception: Rushing without checking. Slow down and check your work.
  2. Explain another way: use real objects, pictures or actions first, then words.
  3. Show a simpler example: Re-read the examples slowly and use the sentence frames.
  4. Guided practice: work through one example together and let the learner try the next one.
  5. Reassess: use the quiz again or the worksheet.
  6. Move on when the learner shows Silver-level evidence independently.

For parents and guardians

In this lesson your child practises a key Grade 3 English skill with clear examples and a quiz. You do not need to be an expert to help.

  • Listen while your child explains the idea.
  • Ask for one new example.
  • Praise effort and careful work.
  • 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: use FANBOYS; use a semicolon; place commas; avoid run-ons.

Prerequisite knowledge. Independent and dependent clauses.

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). Introduce the idea with the opening example.

Explanation (10 min). Teach the key words.

Guided activity (10 min). Practise together.

Independent activity (10 min). Check understanding with the quiz.

Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.

Key questions. What is the key idea? Can I give my own example?

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 the sentence frames and work with a partner. Extension. Create a harder example of your own.

Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.

Misconceptions. Rushing without checking. Slow down and check your work.

13–15. Assessment questions, answer keys, marking scheme

Use the quiz, the 10-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. Re-read the examples slowly and use the sentence frames. Enrichment. Make up your own example and teach it to someone at home. 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 6 » 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.6.2 (use punctuation to separate items and clauses); Cambridge Primary English Stage 6 (compound sentences and punctuation). These sources informed the lesson.

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