Class: Primary 5
Term: 3rd Term
Subject: Basic Science And Technology
Curriculum Theme: Basic Science
Previous Lesson: Types Of Acids And Bases
Topic: Uses Of Acid And Base
Content/Learning Area: Uses Of Acid And Base
Time Allocation: 40 minutes

Performance Objectives

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

Cognitive Domain: list five uses of acid and base in everyday life.
Affective Domain: Show recognition for the usefulness of acids and bases in homes and industries.
Psychomotor Domain: Identify and match substances to either acid or base categories.
Social Domain: Collaborate with peers to discuss safe uses of acids and bases.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum
Abuja Educational Resource Center Scheme of work
NAPPS National Unified Scheme of Work
Online Facts from: Monarch Chemicals – 10 most common acids and their uses
Relevant Textbooks

Instructional Materials

To deliver this lesson, the teacher will use the following materials:

Chart showing common acids and bases
Samples of vinegar, lemon juice, soap, baking soda
Litmus paper
Whiteboard and marker
Pictures of cleaning agents and batteries

Rationale for the Lesson

Understanding the uses of acids and bases helps pupils know how these substances are used safely at home and in industries.

Prerequisite/Previous Knowledge

Pupils have learned about the properties of acids and bases and can identify some common acidic and basic substances.

Lesson Content

Uses Of Acid And Base

Acids are useful substances found in many everyday items. They are used for cleaning, cooking, and even in medicine.

The following are uses of acids:

Used in batteries to produce electricity
used to remove stains from metals
Used in making soft drinks and food
Used in making medicines like vitamin C
Used to clean toilets and tiles
Used in the production of fertilizers for agriculture
Used in the manufacturing of plastics and synthetic fibers

Uses of Bases

Bases are substances that feel slippery and are found in many cleaning agents. They help to remove dirt and grease.

The following are uses of bases:

Used in making soap and detergents
Used in toothpaste to clean teeth
Used to neutralize acid spills
Used in making paper and textiles
Used to soften water in washing
Used in the production of antacids to relieve heartburn
used in the manufacturing of certain medications and pharmaceuticals

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion,Lecture,Description,Group Work,Demonstration,Use of Visual aids

Instructional Procedures

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

Step 1: Introduction

Time: 5 mins
Teaching Skill: Set Induction
Teacher’s Activity: Tells a short story about how batteries work and asks pupils to mention substances used in homes for cleaning or cooking.
Pupils’ Activity: Pupils listen and respond to the teacher’s questions.

Step 2: Introduction to Acids

Time: 7 mins
Teaching Skill: Explanation
Teacher’s Activity: Explains what acids are and shows samples of acid-containing items like lemon and vinegar.
Pupils’ Activity: Pupils observe and identify acidic items.

Step 3: Uses of Acids

Time: 8 mins
Teaching Skill: Demonstration
Teacher’s Activity: Lists and explains the uses of acids with pictures and shows how toilet cleaner works.
Pupils’ Activity: Pupils take turns to observe the acid samples and match them with their uses.

Step 4: Uses of Bases

Time: 8 mins
Teaching Skill: Group Work
Teacher’s Activity: shows pictures and real samples of base substances like soap and baking soda, and explains their uses.
Pupils’ Activity: Pupils discuss in groups and match base substances with their uses.

Step 5: Note-Taking

Time: 3 mins
Teaching Skill: Writing
Teacher’s Activity: Guides pupils to write down key points about the uses of acids and bases.
Pupils’ Activity: Pupils copy the class note into their notebooks.

Step 6: Evaluation/Review

Time: 5 mins
Teaching Skill: Questioning
Teacher’s Activity: Asks pupils to list three uses of acids and three uses of bases.
Pupils’ Activity: Pupils answer questions and do short group presentations.

Objective-aligned checks:

list five uses of acid and base in everyday life.
Show recognition for the usefulness of acids and bases in homes and industries.
Identify and match substances to either acid or base categories.

Step 7: Conclusion

Time: 4 mins
Teaching Skill: instructional Closure
Teacher’s Activity: Summarizes the lesson, highlights the importance of acids and bases, and encourages pupils to observe these substances in use at home and school.
Pupils’ Activity: Pupils ask final questions, reflect on learning, and appreciate the lesson.

Lesson Keywords

Acid – A substance that can taste sour and is used in cleaning and cooking
base – A substance that feels slippery and is used in making soap
Battery – A device that stores and provides electricity using acid
Toothpaste – A base product used to clean teeth
Neutralize – To cancel the effect of an acid using a base

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

Mention two uses of acids
Mention two uses of bases
Match vinegar, soap, and toothpaste to either acid or base
Say one place where acid is used at home
Explain how bases help in cleaning

Assignment/Homework

List five items at home that contain acids or bases.
Describe how acids and bases are meaningful in industries.
Research and write about the safety precautions when using acids and bases.

Differentiation

For slower learners: Provide simplified examples and hands-on activities with direct guidance.
For advanced learners: Encourage independent research on the chemical reactions of acids and bases.
For visual/auditory/kinesthetic learners: Use real-life samples for visual learners, verbal explanations for auditory learners, and hands-on experiments for kinesthetic learners.

Note for Teachers

Encourage hands-on observation using safe materials. Emphasize safety while handling acids and bases, even when they are common household substances.