Expository Writing, Purpose and Basic Features for SS 1

Class: SS 1
Term: Second Term
Week: 9
Age: 15 years
Duration: 60 minutes
Subject: English Language
Curriculum Theme: Writing
Focal competence: Writing good expository essays
Key competencies/values: Communication; ICT and Digital Competencies; Digital Competencies; Collaboration; Critical Thinking
Skills:

• define expository composition

Previous Lesson: Paraphrasing topic sentences and key ideas in Reading
Topic: Expository Essay
Subject Matter: Meaning, Purpose and Basic Features of Expository Writing, Meaning of expository writing

Specific Objectives

By the end of the lesson, pupils/students should be able to:

Cognitive Domain

• Define expository composition.
• Identify the purpose of expository writing.
• List the basic features of an expository essay.

Affective Domain

• Appreciate the importance of clear and logical presentation in writing.
• Show interest in writing well-structured expository essays.

Psychomotor Domain

• Draft a simple expository composition.
• Present their written work clearly to the class.

Social Domain

• Collaborate effectively with peers in group writing activities.

Reference Materials

The following resources were used in planning this lesson:

• 2025 New Revised Senior Secondary Education Curriculum (SSEC)
• Relevant State Unified Scheme of Work
• A suitable English Language textbook for SS 1
• The HeadTeacher Scheme of work For The New Revised Senior Secondary Education Curriculum (SSEC)

Instructional Materials

The teacher will teach this lesson with the aid of:

• Whiteboard or blackboard
• Markers or chalk
• Sample expository essays (e.g., newspaper articles, textbook explanations)
• Writing materials (notebooks, pens)
• Projector (optional, for displaying sample essays)

Rationale for the Lesson

This lesson is important because it equips students with the fundamental skills of explaining, informing, and clarifying ideas effectively. Mastering expository writing is essential for academic success across all subjects and for clear communication in everyday life. It helps students develop critical thinking and logical reasoning abilities.

Prerequisite/Previous Knowledge

Students should have basic knowledge of sentence construction, paragraph development, and general essay structure.

Lesson Content/Board Summary

Expository Essay

Meaning of Expository Writing

Expository writing is a type of writing that aims to explain, inform, or clarify a topic. It presents facts, ideas, and information in a clear, logical, and objective manner, without including the writer’s personal opinions or emotions.

It focuses on presenting information in a way that helps the reader understand a subject or process. Examples include textbook explanations, news articles, instruction manuals, and essays that define, compare, or analyze.

Purpose of Expository Writing

The main purposes of expository writing are to:

1. Explain: To make a concept, idea, or process clear and understandable to the reader.
2. Inform: To provide factual information about a subject.
3. Clarify: To remove confusion or misunderstanding about a topic.
4. Define: To state the meaning of a term or concept.
5. Analyze: To break down a topic into its components and examine them.
6. Compare and Contrast: To show similarities and differences between two or more subjects.

Basic Features of Expository Writing

Effective expository writing typically has the following characteristics:

1. Clear Central Idea (Thesis Statement): The essay has a main point or argument that is clearly stated, usually in the introduction.
2. Factual Information: It relies on verifiable facts, evidence, statistics, and examples rather than personal opinions or beliefs.
3. Logical Organization: Information is presented in a structured and coherent way, often using methods like chronological order, cause and effect, comparison/contrast, or problem/solution.
4. Relevant Supporting Details: Every point made is backed up with specific and appropriate details that help to explain or illustrate the main idea.
5. Objectivity: The writer maintains a neutral tone, avoiding bias or emotional language. The focus is on the subject matter itself.
6. Clear and Concise Language: The language used is precise and easy to understand, avoiding jargon or overly complex sentences.
7. Transitions: Effective use of transitional words and phrases (e.g., “furthermore,” “however,” “in addition,” “consequently”) to connect ideas and ensure smooth flow between paragraphs.
8. Orderly Presentation: The essay follows a standard structure of introduction, body paragraphs, and conclusion, each serving a specific function.

Teaching Methods/Instructional Techniques

Discussion, Explanation, Question and Answer, Guided Practice, Pair Work, Group Work, Presentation

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Questioning/Activating prior knowledge

Teacher’s Activity: The teacher greets the students and asks them to recall different types of essays they might have encountered, such as narrative or descriptive essays. The teacher then introduces the topic of expository essays, explaining that this type of writing is about explaining things clearly.

Pupils’ Activity: Pupils respond to questions about essay types and listen attentively to the introduction of expository writing.

Learning Point: Introduction to exposition

Step 2: Meaning of Expository Writing

Time: 10 minutes

Teaching Skill: Explanation/Definition

Teacher’s Activity: The teacher explains the meaning of expository writing, emphasizing that it explains, informs, or clarifies a topic using facts and logical arrangement. The teacher provides simple examples like explaining “how to make a cup of tea” or “the causes of erosion.”

Pupils’ Activity: Pupils listen, ask questions for clarification, and note down the definition.

Learning Point: Expository writing definition

Step 3: Purpose of Expository Writing

Time: 10 minutes

Teaching Skill: Explanation/Discussion

Teacher’s Activity: The teacher discusses the various purposes of expository writing, such as to explain, inform, clarify, define, analyze, and compare/contrast. The teacher gives examples for each purpose and asks students to suggest situations where each purpose would be relevant.

Pupils’ Activity: Pupils participate in the discussion, identify purposes, and provide examples.

Learning Point: Purpose of exposition

Step 4: Basic Features of Expository Writing

Time: 10 minutes

Teaching Skill: Elucidation/Analysis

Teacher’s Activity: The teacher highlights the basic features of expository writing, such as a clear central idea, factual information, logical organization, relevant supporting details, objectivity, clear language, and transitions. The teacher uses a simple sample essay to point out these features.

Pupils’ Activity: Pupils listen, observe the features in the sample essay, and ask questions.

Learning Point: Features of expository writing

Step 5: Guided Practice – Identifying Features

Time: 5 minutes

Teaching Skill: Guided Practice/Identification

Teacher’s Activity: The teacher provides another short expository text (e.g., a paragraph from a science textbook) and guides students to identify its central idea, supporting facts, and logical flow. The teacher encourages students to discuss their observations.

Pupils’ Activity: Pupils work individually or in pairs to identify the features in the provided text.

Learning Point: Feature identification practice

Step 6: Paired Writing Activity and Presentation

Time: 5 minutes

Teaching Skill: Collaboration/Application

Teacher’s Activity: The teacher divides students into pairs and assigns a simple expository topic (e.g., “How to prepare a simple Nigerian dish,” “The importance of good hygiene”). Students are guided to write a short expository composition (1-2 paragraphs) in their pairs, focusing on the features discussed. They prepare to present their work.

Pupils’ Activity: Pupils work in pairs to draft their compositions and prepare for presentation.

Learning Point: Collaborative writing practice

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. What is expository writing?
2. Mention two purposes of expository writing.
3. List three basic features of an expository essay.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Expository writing concepts

Step 8: Note-Taking

Time: 10 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on the meaning, purpose, and basic features of expository writing into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Recording lesson notes

Step 9: Conclusion

Time: 5 minutes

Teaching Skill: Summarization

Teacher’s Activity: The teacher briefly summarizes the key points of the lesson, reiterating the importance of clear, factual, and logically organized writing when explaining or informing. The teacher encourages students to practice expository writing in their daily studies.

Pupils’ Activity: Pupils listen and ask any final questions.

Learning Point: Lesson consolidation

Continuous Assessment/Further Study

Type: Homework

Instruction: Write a short expository essay (about 150-200 words) on one of the following topics. Ensure your essay has a clear central idea, factual information, and logical organization.

1. Explain “The importance of water to human life.”
2. Describe “How to stay safe during the rainy season.”
3. Compare and contrast “Life in the village and life in the city.”

Lesson Keywords

• Expository – Writing that explains, informs, or clarifies.
• Composition – A piece of writing, especially an essay.
• Factual – Based on facts; real or true.
• Logical – Following the rules of logic; reasonable or sensible.
• Objective – Not influenced by personal feelings or opinions in considering and representing facts.
• Central Idea – The main point or message of an essay.
• Transition – Words or phrases that connect ideas and paragraphs smoothly.

Differentiation

For struggling learners: Provide sentence starters or a simple outline for their paired writing activity. Offer more direct examples and simplified texts for feature identification. Focus primarily on defining expository writing and identifying its purpose.

For advanced learners: Challenge them to write a longer expository essay with more complex topics or to identify and critique the effectiveness of transitions in a given text. Encourage them to explore different organizational patterns for expository writing.

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