Class: Junior Secondary School 1 (JSS1, JSS 1)
Term: 2nd Term
Week: 4
Age: 12 years
Duration: 45 minutes
Subject: Basic Science And Technology
Curriculum Theme: Basic Science
Previous Lesson: Consequences of Pollution, Water Borne Diseases, Soil Fertility and Control Measures
Topic: Sexually Transmitted Infection (STI)
Subject Matter: Definition of STI, Transmission of STI, Signs and symptoms of STI, Effects of STI, Prevention of STI, Examples of behaviours that put people at risk, Finding help

Specific Objectives

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

Cognitive Domain:
(a) Define sexually transmitted infection (STI) and describe its transmission.
(b) Identify signs, symptoms, and effects of common STIs.
(c) Explain preventive measures and behaviours that increase risk.
Affective Domain:
(a) Develop a positive attitude towards personal hygiene and safe practices.
(b) Appreciate the importance of seeking help when infected.
Psychomotor Domain:
(a) Demonstrate proper handwashing and personal hygiene practices.
(b) Role-play scenarios to show ways of avoiding risky behaviours.
Social Domain:
(a) Discuss with peers the importance of responsible behaviour in preventing STIs.
(b) Encourage friends and family to adopt safe health practices.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum
Lagos State Unified Scheme of work for Junior Secondary Schools
World Health Organization – “Sexually Transmitted Infections (STIs)” (https://www.who.int/news-room/fact-sheets/detail/sexually-transmitted-infections-(stis)
Relevant Textbooks

Instructional Materials

The teacher will teach this lesson with the aid of:

Charts illustrating common STIs and their symptoms
Flashcards of STI prevention methods and risky behaviours
Short video clips showing safe and unsafe practices
Whiteboard and markers
Role-play scenario cards

Rationale for the Lesson

This lesson enables pupils to understand STIs, recognize their risks, and adopt preventive measures to maintain personal and community health.

Prerequisite/Previous Knowledge

Pupils have prior knowledge of basic human anatomy, hygiene, and general communicable diseases, and can identify unsafe behaviours.

Lesson Content/Board Summary

Sexually Transmitted Infection (STI)

Sexually transmitted infections (STIs) are infections that are primarily spread through sexual contact. They can affect both males and females and may lead to serious health complications if untreated.

Definition of STI

STIs are infections passed from one person to another through sexual activities.

Examples are:

Gonorrhea
Chlamydia
Syphilis
HIV/AIDS
Human Papillomavirus (HPV)

Transmission of STI

STIs can spread through sexual intercourse, contact with infected body fluids, or from mother to child during pregnancy.

The following are common ways of transmission:

Unprotected sexual intercourse
Sharing unsterilized needles
Blood transfusions with infected blood
Mother-to-child transmission during birth or breastfeeding

Signs and Symptoms of STI

STIs often show physical signs and discomfort in affected individuals.

They are:

Unusual discharge from genital organs
Painful urination
Sores, blisters, or rashes on genital areas
Itching and swelling
Fever and general body weakness

Effects of STI

If untreated, STIs can have severe effects on health and life.

These include:

Infertility or reduced fertility
Chronic pain or discomfort
Increased risk of contracting other infections
Complications in pregnancy or childbirth
Emotional stress and social stigma

Prevention of STI

STIs can be prevented through safe practices and responsible behaviour.

The following are preventive measures:

Abstaining from sexual activities or delaying sexual debut
Consistently using condoms during sexual intercourse
Avoiding sharing needles or sharp objects
Maintaining personal hygiene
Getting regular medical check-ups

Examples of Behaviours That Put People at Risk

Certain behaviours increase the likelihood of contracting STIs.

Examples include:

Engaging in unprotected sex with multiple partners
Sharing personal hygiene items like razors
Substance abuse that leads to risky sexual behaviour
Ignoring symptoms and delaying medical care

Finding Help

Timely medical attention is crucial for managing and treating STIs.

These include:

Visiting a qualified healthcare provider or clinic
Informing partners to seek treatment
Following prescribed medication and treatment plans
Seeking counselling and support when needed

Teaching Methods/Instructional Techniques:

Discussion, Lecture, Storytelling, Explanation, Visual Aids, Group Work, Demonstration, Role-play

Instructional Procedures

To deliver this lesson, the teacher will adopt the following steps:

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: Teacher asks pupils about general health problems among teenagers and links it to STIs, reviewing previous knowledge on hygiene.
Pupils’ Activity: Pupils respond and recall hygiene and health knowledge.
Learning Point: Pupils are motivated and prepared to learn about STIs.

Step 2: Definition and Transmission of STI

Time: 8 minutes
Teaching Skill: Explanation
Teacher’s Activity: Teacher defines STI and explains transmission using charts and examples.
Pupils’ Activity: Pupils listen, take notes, and give examples of transmission.
Learning Point: Pupils understand what STIs are and how they spread.

Step 3: Signs, Symptoms, and Effects of STI

Time: 10 minutes
Teaching Skill: Discussion
Teacher’s Activity: Teacher lists signs, symptoms, and possible health effects, linking to real-life examples.
Pupils’ Activity: Pupils identify signs they have seen or learned about.
Learning Point: Pupils recognize early warning signs and potential consequences of STIs.

Step 4: Prevention and Risk Behaviours

Time: 10 minutes
Teaching Skill: Demonstration/Group Work
Teacher’s Activity: Teacher shows preventive measures using visual aids; pupils role-play safe and risky behaviours.
Pupils’ Activity: Pupils participate actively in demonstrations and role-play.
Learning Point: Pupils learn how to prevent STIs and understand risky behaviours.

Step 5: Note-Taking

Time: 5 minutes
Teaching Skill: Explanation
Teacher’s Activity: Teacher writes board summary for pupils to copy.
Pupils’ Activity: Pupils write down the board summary.
Learning Point: Pupils have written records of lesson content.

Step 6: Evaluation/Review

Time: 5 minutes
Teaching Skill: Questioning
Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

What is a sexually transmitted infection?
List three ways STIs can be transmitted.
Mention two signs of STI.
Give two ways to prevent STIs.
Pupils’ Activity: Pupils answer orally and provide examples.
Learning Point: Pupils demonstrate comprehension of the lesson objectives.

Step 7: Conclusion

Time: 2 minutes
Teaching Skill: Reinforcement
Teacher’s Activity: Teacher summarizes key points, reinforces safe practices, and advises pupils to seek help when needed.
Pupils’ Activity: Pupils listen and ask clarifying questions.
Learning Point: Pupils appreciate the importance of prevention and seeking help for STIs.

Home Task: Record two correct examples of Sexually Transmitted Infection (STI) from the lesson or home environment and explain each in your own words.

Lesson Keywords

STI – Sexually transmitted infection
Transmission – How infection is passed from one person to another
Symptoms – Signs of illness or disease
Prevention – Measures taken to avoid disease
Risky Behaviour – Actions that increase chances of infection
Counselling – Professional guidance to manage health issues

Differentiation

Teacher uses visual aids and role-play for slower learners, while advanced learners lead discussions and present examples.

Note for teachers using this lesson plan

Ensure sensitivity when discussing STIs; maintain a respectful and age-appropriate approach. Emphasize confidentiality and the importance of seeking professional help.