Class: Primary 5
Term: 3rd Term
Subject: Pre-Vocational Studies
Curriculum Theme: Home Economics
Previous Lesson: Differences Between Cooking Tools And Equipments
Topic: Materials For making Cleaning Agents: Local abrasives
content/Learning Area: Materials used in Producing local abrasives
Time Allocation: 40 minutes

Performance Objectives

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

Cognitive domain: Identify and name different materials used for making local abrasives.
Affective Domain: Show appreciation for the importance of using local cleaning materials.
Psychomotor Domain: List and group materials used to produce local abrasives.
Social domain: Work cooperatively wiht classmates during group discussions on abrasive materials.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum
Abuja Educational Resource Centre Scheme of Work
NAPPS National Unified Scheme of Work
Online Facts from: wikipedia – Abrasive
Relevant Textbooks

Instructional Materials

To deliver this lesson, the teacher will employ the help of the following materials: Ashes, Sandpaper, Palm kernel shells, grated coconut husk, Diagrams or charts of cleaning materials, Real samples of local abrasives

Rationale for the Lesson

Understanding materials for local abrasives helps pupils learn how to clean their surroundings using affordable and available resources.

Prerequisite/Previous Knowledge

Pupils already know common cleaning activities at home and school using soap and water.

lesson Content

Materials For Making Cleaning Agents: Local Abrasives

Abrasives are rough materials that are used to clean or scrub things to remove dirt. They help make dirty surfaces clean again.

Local Materials Used as Abrasives

Some materials we use at home or in our environment can definitely help clean things very well. These materials are easy to find.

The following are local materials used to produce abrasives:

Ash
Sand
Broken palm kernel shell
Coconut husk
Grated maize cob
Crushed charcoal
Grated sponge plant (sponge gourd)
Clay
Loofah
Groundnut Shells

Local Abrasives and Cleaning Materials

An abrasive removes dirt by rubbing. Traditional or locally available examples may include fine clean sand, ash or powdered plant material, but suitability depends on the surface and hygiene purpose. Commercial scouring powder and pads are manufactured alternatives.

Abrasives can scratch surfaces and must not contaminate food. Test a small area, use gloves where advised, keep every product labelled and never mix unknown cleaning chemicals.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion, lecture, explanation, presentation, group work, visual aids

Instructional Procedures

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

Step 1: Introduction

Time: 5min
Teaching Skill: Set Induction
Teacher’s Activity: Teacher shows a dirty pot and asks pupils how they would clean it, then displays local cleaning materials like ash and sand.
Pupils’ activity: Pupils observe, respond to questions, and identify some materials shown.

Step 2: Meaning of Abrasives

Time: 5min
Teaching Skill: Explanation
Teacher’s Activity: Teacher defines abrasives and explains how they are used for cleaning rough and dirty surfaces.
Pupils’ Activity: Pupils listen and repeat the meaning of abrasives.

Step 3: Local Materials for Abrasives

Time: 10min
Teaching Skill: Demonstration
Teacher’s Activity: Teacher displays and names local abrasive materials and groups them based on their sources (plant, mineral, waste).
Pupils’ Activity: Pupils observe, name and group the materials.

Step 4: Importance of Local Abrasives

Time: 5min
Teaching Skill: Discussion
Teacher’s Activity: Teacher explains how local abrasives are useful and encourages pupils to say why they think these materials are important.
Pupils’ Activity: Pupils listen and contribute to the discussion.

Step 5: Note-Taking

time: 5min
Teaching Skill: Writing
Teacher’s Activity: Teacher dictates the note on the board or reads for pupils to copy into their books.
Pupils’ Activity: Pupils copy the note.

Step 6: Evaluation/Review

Time: 5min
Teaching Skill: Questioning
Teacher’s Activity: Teacher asks pupils to name materials and say their uses.
Pupils’ Activity: Pupils answer questions and complete related tasks.

Objective-aligned checks:

Identify and name different materials used for making local abrasives.
List and group materials used to produce local abrasives.

Step 7: Conclusion

Time: 5min
Teaching Skill: Instructional, Cognitive
Teacher’s Activity: Teacher summarizes the lesson, asks pupils to say what they learnt, and encourages them to try using one material at home.
Pupils’ Activity: Pupils listen and respond.

Lesson Keywords

Abrasives: Rough materials used for cleaning
Ash: Powder from burnt wood used for scrubbing
Charcoal: Burnt wood used as a cleaning material
Coconut husk: Rough fiber from coconut shell
Palm kernel shell: Hard shell from palm fruit used for scrubbing
Sand: Granular material used for scouring

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

Define abrasives
List four local materials used to produce abrasives
Mention two reasons why local abrasives are important
Identify materials from a sample display
Share an example of how they used a local abrasive at home

Assignment/Homework

List five additional local materials that can be used as abrasives.
Describe how you can prepare ash for use as a cleaning agent at home.
Research and write about the environmental benefits of using local abrasives over chemical cleaners.

Differentiation

For slower learners: Provide simplified definitions and focus on identifying the materials through hands-on activities.
For advanced learners: Encourage them to research and present on the chemical properties of local abrasives and their effectiveness.
For visual/auditory/kinesthetic learners: Use pictures,demonstrations,and hands-on activities to cater to different learning styles.

Note for Teachers

Use real samples to make the lesson engaging. Encourage group participation and link examples to everyday life.