Soap Making – Local Materials Used for Making Soaps and Detergents | Active Ingredients in Soap Making Primary 5 (Basic 5)

Last Updated on December 18, 2020 by Alabi M. S.

 

GENERAL INFORMATION

BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY

SECOND TERM  

WEEK 10

PRIMARY 5 

THEME – LIVING AND NON LIVING 

PREVIOUS LESSON – Meaning of Acids and Bases | Properties of Acids and Bases | Types of Acids and Bases | Uses of Acids and Bases Primary 5 (Basic 5)

TOPIC – LOCAL AND MODERN SOAPS 

 

LEARNING AREA

1. Soaps and Uses of Soaps

2. Local Materials Used of Making Soap/Soap Ingredients of the Materials

3. Sample of Materials used for making local black and modern soap

4. How to Make Local Soap

5. Weekly Assessment

 

PERFORMANCE OBJECTIVES 

By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor) and should be able to –

1. name local materials used in making soap.

2. identify the active ingredients in the local material used in making soap.

3. state the uses of soap.

4. make soap from local materials.

 

ENTRY BEHAVIOUR

As stated in the instructional materials.

 

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. Wood ash

2. Water

3. Glass or plastic container

4. Palm oil

5. Stove

6. Cans and containers

7. Spatula or wooden spoon

8. Dirty Handkerchief

 

 

METHOD OF TEACHING 

Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons. 

 

REFERENCE MATERIALS

1. Scheme of Work

2. 9 – Years Basic Education Curriculum

3. Course Book

4. All Relevant Material

5. Online Information

 

WRITING INSTRUCTION 

Copy as I write or draw as I need. This instruction should be given when you need the pupils to write or draw.

 

CONTENT OF THE LESSON  

LESSON 1 – INTRODUCTION 

Teacher’s Activities – Display sample of local and modern soap for the pupils to identify, differentiate and state the uses of soap.

Pupil’s response to lesson introduction – This is local and modern soaps and the different depends on the materials used for materials each of them. Soaps are used for…..

Teacher’s remark – Soaps are substances used for washing. A great cheer for active and quick response.

 

On board, copy as I write.

SOAP MAKING 

Soap are substances used for washing.

 

On board, copy as I write.

TYPES OF SOAP 

1. Local soaps

Local soap are black soap used for bathing. Local materials or ingredients are used for making local soaps.

 

2. Modern soaps

 

 

Modern soap are joy soap, sunrise detergent, sunrise dish wash, omo osun, etc. These soaps are made with modern materials or ingredients.

 

On board, copy as I write.

USES OF SOAP 

Soap are used for bathing, washing clothes, washing dishes, removing dirts, etc.

 

LESSON TWO – LOCAL MATERIALS AND ACTIVE INGREDIENTS USED FOR MAKING LOCAL SOAPS 

Teacher’s Activities – Display materials or ingredients used for making local soaps for the pupils to identify.

Pupil’s response – Palm oil, ash, stirring stick, pot or pan, etc.

Teacher’s remark – The following materials identified are materials used for making local soaps. Great cheer for quick response.

 

On board, copy as I write.

1. Ash

2. Palm oil or animal fat

3. Water

4. pot or pan

5. Spoon or stick for stirring

 

On board, copy as I write.

ACTIVE INGREDIENTS IN SOAP MAKING

Acids and bases as ingredients used in making soap are sodium hydroxide and potassium hydroxide.

1. Sodium hydroxide for making bar soap.

2. Potassium hydroxide for making liquid soap.

 

LESSON 3 – HOW TO MAKE LOCAL SOAP 

Teacher’s Activities – Group the pupils and provide the following items – palm oil, frying pan or open pot, caustic soda, long spoon or stick for stirring, milk containers, stove and dirty handkerchiefs.

Teacher’s instructions –

  • Heat the palm oil until it changed colour.
  • Add some caustic soda to the heated oil.
  • Stir the oil and caustic soda very well.
  • Turn off the heat.
  • Pour the mixture into the milk container for moldings.
  • Allow to cool and harden.
  • Wash dirty handkerchiefs or clothes with the soap.

Pupil’s activities and response – Received materials for soap making and for the teacher’s instructions.

Teacher’s activities and remark – Active teacher’s participation is required for precautions and pupil’s safety because heated oil and mixing processes. Give a great cheer for active participation in soap making.

 

REVISION AND WEEK LESSON ASSESSMENT 

As stated in performance objectives or lesson evaluation. 

 

Other Plan Lesson Note on Soaps – Soap Making and Materials Used for Making Soap Primary 5 (Basic 5) ASEI PDSI METHOD

 

PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Displays some local and modern soaps for pupils to identify.

Pupil’s Activities – Identify and differentiate between local and modern soaps.

3. Discuss the uses of soaps.

Pupil’s Activities – Participate in the class discussion.

4. Use palm oil and dissolved wood ash to make soap.

Pupil’s Activities – Use palm oil and dissolved wood ash to make soap.

 

 

5. Displays materials or ingredients used for making local soaps.

Pupil’s Activities – Identify local materials used for making local soaps.

 

CONCLUSION

  • To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.

 

LESSON EVALUATION 

Pupils to:

1. name local materials used in making soap.

2. identify acids and bases as ingredients used in making soap.

3. make soap using local materials.

4. state 3 uses of soap.

 

 

WEEKLY ASSESSMENT

ATTEMPT ALL THE QUESTIONS

 

1. _______________ are liquid or solid substances used for washing.

A. Soaps

B. Cleaners

C. Cleansers

 

2. Soaps are in _______________ form.

A. Solid and liquid

B. Liquid and solid

C. A and B

 

3. There are _______________ types of soaps.

A. 2

B. Two

C. A and B

 

Mention 2 types of soaps.

 

4. _______________

 

5. _______________

 

6. _______________ Sodium hydroxide for making bar soap.

 

 

A. Potassium hydroxide

B. Sodium hydroxide

C. Iye hydroxide

 

7. _______________ for making liquid soap.

A. Sodium hydroxide

B. Iye hydroxide

C. Potassium hydroxide

 

8. State 5 materials used for making local soaps. (3 marks)

  • _______________
  • _______________
  • _______________
  • _______________
  • _______________

 

 

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