PLASTIC BAGS

EARLY CHILDHOOD CARE EDUCATION SCHEMES OF WORK

Subject: 

BASIC SCIENCE AND TECHNOLOGY NURSERY 2

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Term:

SECOND TERM

Class :

NURSERY 2

Week :

Week 3

Topic:

Plastic bags

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Previous lesson: 

The pupils have previous knowledge of

BACK TO SCHOOL (REVISION)

that was taught as a topic in the previous lesson

Behavioural objectives:

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

• Identify various types of plastic bags 
• Mention some uses of plastic bags
• Explain recycling as a way of disposing plastic bags 

Instructional Materials:

• Wall charts
• Audio-visual
• Pictures
• Related Online Video
• Flash Cards
• Posters

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Methods of Teaching:

• Class Discussion
• Group Discussion
• Asking Questions
• Explanation
• Role Modelling
• Role Delegation

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Reference Materials:

• Scheme of Work
• Online Information
• Textbooks
• Workbooks

Content:

Various types of plastic bags.

1. Low density polyethylene (LDPE) bags: These are thin, flexible bags that are often used for packaging items such as bread, frozen foods, and clothing.
2. High density polyethylene (HDPE) bags: These are thicker and more durable than LDPE bags, and are often used for heavier items such as bottled liquids and pet food.
3. Polypropylene (PP) bags: These bags are also known as “bopp” bags, and are similar to HDPE bags in terms of durability and strength. They are often used for packaging products such as cereals and snacks.
4. Polyvinyl chloride (PVC) bags: These bags are typically made from a combination of PVC and plasticizers, and are known for their high strength and transparency. They are often used for packaging items such as electronics and medical equipment.
5. Biodegradable plastic bags: These bags are made from materials that can break down and decompose in the environment, making them a more environmentally friendly option. Examples include bags made from cornstarch and other plant-based materials.
6. Recyclable plastic bags: These bags are made from materials that can be recycled and repurposed into new products. Many LDPE, HDPE, and PP bags are recyclable, although it’s important to check with your local recycling program to see which types of plastic bags they will accept

1. Packaging and carrying groceries: Plastic bags are commonly used to package and carry groceries from the store to home.
2. Packaging and transporting items for storage or shipping: Plastic bags are often used to package and transport items for storage or shipping, as they provide protection and can be easily sealed.
3. Waste management: Plastic bags are often used as a lining for waste bins, as they can contain and isolate wet or dirty materials, making it easier to handle and dispose of the waste.
4. Packaging and protecting items during travel: Plastic bags can be used to package and protect items such as clothes and toiletries when traveling, helping to keep them organized and clean.
5. Handling hazardous materials: Plastic bags can be used to handle and transport hazardous materials, as they provide an additional layer of protection and containment.
6. Packing lunches and snacks: Plastic bags are often used to package and carry lunches and snacks, as they can be easily sealed and help to keep food fresh.
7. Protecting and storing items: Plastic bags can be used to protect and store items such as documents, tools, and other small objects, helping to keep them clean and organized.

Recycling as a way of disposing plastic bags

1. Collection: Recycling begins with the collection of plastic bags, which can be done through programs at grocery stores, recycling centers, and other locations.
2. Sorting: Once collected, the plastic bags are sorted by type and color, and any contaminants such as food or other materials are removed.
3. Shredding: The sorted plastic bags are then shredded into small flakes or pellets, which helps to prepare them for the next step in the recycling process.
4. Melting: The shredded plastic flakes or pellets are melted and formed into new products through a process called extrusion.
5. Molding: The melted plastic is then molded into new products such as plastic containers, bags, and other items.
6. Distribution: The recycled plastic products are then distributed for use in various applications, such as packaging and manufacturing.

By recycling plastic bags, we can reduce the amount of waste that goes into landfills and conserve natural resources such as oil, which is used in the production of new plastic. Recycling plastic bags also helps to reduce greenhouse gas emissions, as the recycling process requires less energy than producing new plastic from raw materials.

Presentation

The topic is presented step by step

Step 1:

The class teacher revises the previous topics

Step 2.

He introduces the new topic.

Step 3:

The class teacher allows the pupils to give their own examples and he corrects them when the needs arise. The class teacher makes the pupils to know the reasons for person security

Evaluation

1. Which of the following is NOT a use for plastic bags? a. Packaging and carrying groceries b. Packaging and transporting items for storage or shipping c. Waste management d. Packaging and protecting items during travel e. Recycling metal cans
2. Which of the following is NOT a characteristic of plastic bags used for packaging and carrying groceries? a. Thin and flexible b. Used to package and carry groceries from the store to home c. Made from materials that can break down and decompose in the environment d. Can be easily sealed e. Known for their high strength and transparency
3. Which of the following is NOT a characteristic of plastic bags used for packaging and transporting items for storage or shipping? a. Thin and flexible b. Used to package and carry groceries from the store to home c. Made from materials that can break down and decompose in the environment d. Can be easily sealed e. Provide protection and can be easily sealed
4. Which of the following is NOT a characteristic of plastic bags used for waste management? a. Thin and flexible b. Used to package and carry groceries from the store to home c. Made from materials that can break down and decompose in the environment d. Can be easily sealed e. Used as a lining for waste bins to contain and isolate wet or dirty materials
5. Which of the following is NOT a characteristic of plastic bags used for packaging and protecting items during travel? a. Thin and flexible b. Used to package and carry groceries from the store to home c. Made from materials that can break down and decompose in the environment d. Can be easily sealed e. Used to package and protect items such as clothes and toiletries when traveling
6. Which of the following is NOT a characteristic of plastic bags used for handling hazardous materials? a. Thin and flexible b. Used to package and carry groceries from the store to home c. Made from materials that can break down and decompose in the environment d. Can be easily sealed e. Provide an additional layer of protection and containment
7. Which of the following is NOT a characteristic of plastic bags used for packing lunches and snacks? a. Thin and flexible b. Used to package and carry groceries from the store to home c. Made from materials that can break down and decompose in the environment d. Can be easily sealed e. Used to package and carry lunches and snacks
8. Which of the following is NOT a characteristic of plastic bags used for protecting and storing items? a. Thin and flexible b. Used to package and carry groceries from the store to home c. Made from materials that can break down and decompose in the environment d. Can be easily sealed e. Used to protect and store items such as documents, tools, and other small objects
9. Which of the following is NOT a reason for using plastic bags? a. To package and carry groceries b. To package and transport items for storage or shipping c. For waste management d. To package and protect items during travel e. To reduce greenhouse gas emissions
10. Which of the following is NOT a benefit of using plastic bags? a. They are thin and flexible, making them easy to carry and store b. They are inexpensive and widely available

Conclusion

The class teacher wraps up or concludes the lesson by giving out short notes to summarize the topic that he or she has just taught.

The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.

He or she does the necessary corrections when and where the needs arise.