Class: Primary 5
Term: 3rd Term
Subject: Pre-Vocational Studies
Curriculum Theme: Agricultural science
Previous Lesson:
Topic: Meaning Of Contaminated Foods
Content/Learning Area: Meaning Of Contaminated Foods
Time Allocation: 40 minutes

Performance objectives

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

Cognitive Domain: Explain the meaning of contaminated foods.
Affective Domain: Show concern about eating clean and safe food.
Psychomotor Domain: Identify clean and contaminated food samples.
Social Domain: Work in pairs to examine and discuss food hygiene.

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 Data from: wikipedia – Food contaminant
Relevant Textbooks

Instructional Materials

to deliver this lesson, the teacher will use the following: Samples of clean and contaminated foods, chart showing examples of food contamination, pictures of germs and bacteria, flash cards, whiteboard and marker.

Rationale for the Lesson

understanding contaminated food helps children avoid foodborne illnesses and promotes healthier eating habits.

Prerequisite/Previous Knowledge

Pupils have basic understanding of food and can name common food items.

Lesson Content

Meaning Of Contaminated Foods

Contaminated foods are foods that are not safe to eat. These foods contain harmful things like germs, dirt, or chemicals that can make people sick.

Causes of Food Contamination

Food can get contaminated in different ways.the following are:

Dirty hands touching food
Flies landing on food
Using dirty cooking utensils
Storing food in dirty places
Adding harmful chemicals to food
Improper food storage temperatures
Cross-contamination with raw foods

Types of Food Contamination

There are different kinds of contamination. these include:

Germ contamination
Chemical contamination
Physical contamination
Natural contamination
Allergenic contamination
Radiological contamination

Signs of Contaminated Food

Contaminated foods often show signs. The following are:

Bad smell
Change in color
Slimy texture
Unusual taste
Presence of insects
Visible mold growth
Damaged packaging

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion, Clarification, Presentation, Storytelling, Visual Aids, Group Work.

Instructional Procedures

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

Step 1: Introduction (Set Induction)

Time: 5 mins
Teaching Skill: Set Induction
Teacher’s Activity: Tells a short story of a boy who got sick after eating roadside food.
Pupils’ Activity: Pupils listen and respond to questions.

step 2: Meaning of Contaminated food

Time: 5 mins
Teaching Skill: Explanation
Teacher’s Activity: Explains the meaning of contaminated foods using real food samples and pictures.
Pupils’ activity: Pupils observe samples and listen to the teacher.

Step 3: Causes of Contamination

Time: 5 mins
Teaching Skill: Storytelling
Teacher’s Activity: Tells a story of how food gets dirty during cooking or handling.
Pupils’ Activity: Pupils relate to the story and share ideas.

Step 4: Types of Contamination

Time: 5 mins
Teaching Skill: Demonstration
Teacher’s Activity: Shows examples of physical, chemical, and germ contamination using flash cards.
Pupils’ Activity: Pupils identify and name the types shown.

Step 5: Signs and Dangers

Time: 5 mins
Teaching Skill: Explanation
Teacher’s Activity: Describes signs of bad food and what happens when bad food is eaten.
Pupils’ Activity: Pupils discuss and ask questions.

Step 6: Note-Taking

Time: 5 mins
Teaching Skill: Writng
Teacher’s Activity: Guides pupils to copy short notes from the board.
Pupils’ Activity: Pupils copy notes into their books.

Step 7: Evaluation/review

Time: 3 mins
Teaching skill: Questioning
Teacher’s Activity: Asks pupils questions based on the lesson.
Pupils’ Activity: Pupils answer questions.

Objective-aligned checks:

Explain the meaning of contaminated foods.
Show concern about eating clean and safe food.
Identify clean and contaminated food samples.

Step 8: Conclusion

Time: 2 mins
Teaching Skill: Closure
Teacher’s Activity: Recaps key points, gives moral instruction on cleanliness and food hygiene.
Pupils’ Activity: Pupils listen and reflect on what they learned.

Lesson Keywords

Contaminated – not safe or clean
Germs – tiny living things that cause illness
Chemical – harmful substance added to food
Physical – things like dirt or hair in food
Illness – sickness caused by eating bad food

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

Say what contaminated food means
List two causes of food contamination
Name two types of contamination
Mention two signs of bad food
Point to a picture showing clean and contaminated food

Assignment/Homework

List five ways to prevent food contamination at home.
Describe what you would do if you suspected a food item was contaminated.
Draw pictures of three different types of food contamination.

Differentiation

for slower learners: Teacher pairs struggling pupils with more able ones for group work and gives extra guidance using visual aids.
For advanced learners: Ask them to research different types of foodborne illnesses and present their findings to the class.
For visual/auditory/kinesthetic learners: Use visual aids like pictures and videos, engage in discussions, and provide hands-on activities like examining food samples.

Note for Teachers

Ensure pupils participate in identifying food samples and use real-life examples they can relate to for better understanding.