Letter Writing for Kids: Formal and Informal Letters with Examples

 

Letter and Application Writing for Kids: Easy Grammar Guide for Ages 7–9 and 10–12

Letter writing is an important part of English grammar and writing practice for children. It helps students organise their thoughts, communicate clearly, use correct punctuation, and choose appropriate words for different situations. Whether children are learning English in the United States, the United Kingdom, Canada, or another country, practising letter writing can strengthen their language skills and prepare them for school assignments.

Children aged 7–9 can begin by writing short, simple letters using familiar words and clear sentences. Students aged 10–12 can progress to longer letters, more detailed explanations, and formal applications that follow a specific format.

In this guide, we will explore two important types of letter writing, explain their formats, and provide solved examples that children can study and practise.

What Is Letter and Application Writing?

A letter is a written message sent to another person or organisation. Letters can be used to share news, express feelings, request information, thank someone, or communicate an official request.

An application is a type of formal written request. For example, a student may write an application to a school principal requesting leave for a family event.

Learning letter and application writing helps children develop several important English skills:

• Correct sentence formation and grammar.

• Capitalisation and punctuation.

• Paragraph organisation.

• Vocabulary development.

• Polite and appropriate communication.

• Clear expression of ideas.

For young learners, the best approach is to begin with simple examples and gradually introduce more complex writing tasks.

The Two Main Types of Letters

Letters are commonly divided into two categories: formal letters and informal letters. Applications generally belong to the formal category because they are written to request permission, assistance, or official action.

1. Formal Letters and Applications

A formal letter is written to someone in an official or professional role. Children may write formal letters to a school principal, teacher, librarian, or organisation.

Examples include:

• An application requesting leave from school.

• A letter requesting permission to organise a school activity.

• A letter to a librarian requesting information about library membership.

• A letter thanking an organisation for supporting a school event.

• A letter requesting information about a class or programme.

Important features of formal writing:

• Use polite and respectful language.

• State the purpose clearly.

• Avoid slang and overly casual expressions.

• Organise information into short paragraphs.

• Use an appropriate greeting and closing.

• Check spelling, grammar, and punctuation.

For example, instead of writing, "I want three days off," a student could write, "I would like to request three days of leave."

This small change makes the sentence more polite and suitable for an application.

2. Informal Letters

An informal letter is written to someone the writer knows personally, such as a friend, cousin, grandparent, or another family member.

Informal letters allow children to express their feelings, share experiences, ask questions, and describe events in their lives.

Examples include:

• Writing to a friend about a school trip.

• Inviting a cousin to spend the holidays together.

• Thanking a grandparent for a birthday gift.

• Sharing news about a new hobby.

• Describing a memorable family outing.

Important features of informal writing:

• Use a friendly and natural tone.

• Begin with a personal greeting.

• Share news, experiences, and feelings.

• Ask questions when appropriate.

• Use paragraphs to organise ideas.

• End with a warm closing.

For example, a child might write, "How are you? I hope you are doing well. I have some exciting news to share with you!"

This style is suitable for a letter to a friend but would not normally be appropriate for a formal school application.

Difference Between Formal and Informal Letters

Feature	Formal Letter	Informal Letter
Purpose	Official request or communication	Personal communication
Reader	Principal, teacher, organisation	Friend or family member
Language	Polite and respectful	Friendly and conversational
Greeting	Dear Sir/Madam, Dear Principal	Dear Sam, Dear Grandma
Subject line	Often used when appropriate	Usually unnecessary
Closing	Yours sincerely, Yours faithfully	Best wishes, With love
Main content	Clear and direct	Personal and expressive

The exact format may vary by school, country, or assignment. Children should follow the instructions provided by their teacher.

How to Write a Formal Application: Step-by-Step Guide

A simple school application can follow this structure:

1. Address: Write the sender's address if the assignment requires it.

2. Date: Add the date.

3. Recipient: Write the title of the person receiving the application.

4. Subject: State the purpose in one short line.

5. Greeting: Use a respectful greeting.

6. Opening paragraph: Explain why you are writing.

7. Main paragraph: Give the necessary details.

8. Closing paragraph: Make the request politely.

9. Sign-off: Write an appropriate closing and your name.

For younger children, a teacher may provide a template to help them remember the order.

Solved Example 1: Formal Application for Two Days of School Leave

Question: Write an application to your school principal requesting two days of leave because you are unwell.

12 Green Street
Springfield

15 September 2026

The Principal
Green Valley School
Springfield

Subject: Application for Two Days of Leave

Respected Sir/Madam,

I am a student of Grade 4 at your school. I am writing to request two days of leave because I am unwell and need time to rest.

My doctor has advised me to stay at home until I feel better. I will complete all the classwork and homework that I miss during my absence.

Kindly grant me leave for two days, from 16 September to 17 September 2026.

Thank you for your understanding.

Yours sincerely,
Alex Morgan
Grade 4

Why Is This a Good Example?

This application clearly explains the reason for the request, provides the dates, and uses polite language.

Children should notice the following grammar features:

• Present tense: "I am a student."

• Polite request: "Kindly grant me leave."

• Future intention: "I will complete all the classwork."

• Capitalisation: The names of the school and the student begin with capital letters.

• Paragraphs: Each paragraph communicates one main idea.

The example uses a simple structure that younger learners can adapt to other formal writing tasks.

How to Write an Informal Letter: Step-by-Step Guide

An informal letter does not need to follow the same detailed structure as a formal application. However, it should still be organised and easy to understand.

Children can use these steps:

1. Write the address and date if required.

2. Begin with a friendly greeting.

3. Introduce the purpose of the letter.

4. Share information or describe an experience.

5. Ask a question or invite a reply if appropriate.

6. End with a friendly closing and your name.

For children aged 7–9, three short paragraphs may be enough. Students aged 10–12 can add descriptive details, feelings, and more varied sentence structures.

Solved Example 2: Informal Letter to a Friend About a School Trip

Question: Write a letter to your friend describing an enjoyable school trip.

Dear Jamie,

How are you? I hope you are doing well. I want to tell you about the wonderful school trip I went on last week.

Our class visited a science museum. We saw interesting experiments, learned how robots work, and explored a special space exhibition. My favourite part was the planetarium, where we watched a show about the stars and planets. Our teacher also organised a quiz, and my team won first prize.

I wish you had been there with us. I think you would have enjoyed the trip as much as I did. Have you been on any exciting school trips recently? Write back and tell me about them.

Best wishes,
Alex

Why Is This a Good Example?

This informal letter uses friendly language and describes a personal experience in an interesting way.

Children can learn from the following features:

• Friendly greeting: "Dear Jamie"

• Personal expression: "My favourite part was the planetarium."

• Past tense: "We visited a science museum."

• Descriptive vocabulary: "interesting experiments" and "special space exhibition"

• Question formation: "Have you been on any exciting school trips recently?"

• Friendly closing: "Best wishes"

The letter also uses paragraphs to separate the introduction, main experience, and conclusion.

Letter Writing Practice for Kids Aged 7–9

Younger learners should focus on basic sentence construction, correct punctuation, and the main parts of a letter.

Try these practice activities:

1. Write a short letter to your friend about your favourite animal.

2. Write an application to your teacher requesting one day of leave.

3. Write a thank-you letter to your grandparent for a gift.

4. Write a letter inviting your cousin to your birthday party.

5. Correct the punctuation in a letter that has missing full stops and capital letters.

Parents and teachers can encourage children to write approximately 50–80 words at first, depending on their ability and the task requirements.

Letter Writing Practice for Kids Aged 10–12

Older children can develop more detailed writing skills by including explanations, examples, and a wider range of sentence structures.

Try these activities:

1. Write a formal letter to your school principal requesting permission to start a reading club.

2. Write an informal letter to a friend describing a memorable holiday.

3. Write a letter to a local library asking about its children's reading programme.

4. Write a thank-you letter to a teacher who helped you improve your English.

5. Rewrite an informal letter as a formal letter, changing the greeting, tone, vocabulary, and closing.

Students can aim for approximately 100–150 words when appropriate, but they should follow the word limit given in their assignment.

Common Letter Writing Mistakes Children Should Avoid

Children often make a few predictable mistakes when learning letter writing. Regular practice can help them correct these errors.

1. Using the wrong tone: A letter to a principal should be polite and respectful, while a letter to a friend can be more conversational.

2. Forgetting punctuation: Every sentence should begin with a capital letter and end with appropriate punctuation.

3. Writing everything in one paragraph: Separate the introduction, main message, and conclusion.

4. Repeating the same words: Encourage children to learn synonyms and use descriptive vocabulary where appropriate.

5. Forgetting the purpose: The reader should understand why the letter was written.

6. Ignoring the format: Follow the required layout, particularly for formal applications.

7. Skipping proofreading: Read the completed letter aloud to identify missing words, awkward sentences, and grammatical errors.

How Grammar Practice Can Improve Letter Writing

Letter writing combines several areas of English grammar. Children need to understand nouns, pronouns, verbs, adjectives, sentence structure, punctuation, and verb tenses to write clearly.

For example, a child writing about a school trip needs to use the past tense correctly. A child requesting leave needs to form polite sentences. A child writing to a friend needs to organise ideas and choose appropriate vocabulary.

Parents looking for structured English grammar practice can explore the Grammar in Steps book series on Amazon. The series can be considered alongside regular writing activities, reading practice, and teacher-guided exercises. Choose the level that best matches your child's age and current skills.

A grammar workbook is most useful when children actively complete exercises, review mistakes, and apply what they learn to their own writing.

Final Thoughts

Letter and application writing helps children become more confident and organised writers. By learning the difference between formal and informal letters, practising correct formats, and studying solved examples, students can gradually improve their grammar and communication skills.

For ages 7–9, begin with short letters and simple sentences. For ages 10–12, introduce longer paragraphs, more precise vocabulary, and formal applications that explain a request clearly.

The key to improvement is consistent practice. Encourage children to write regularly, proofread their work, and apply grammar rules in real writing situations. These habits can support stronger English skills throughout school and beyond.