Understanding the Different Types of Teeth Basic Science Primary 4 Third Term Lesson Notes Week 11

Lesson Plan: Human Body (The Teeth)

Subject: Basic Science
Class: Primary 4
Term: Third Term
Week: 11
Topic: Human Body (The Teeth)
Sub-topic: Incisors, Canines, Molars, Premolars
Duration: 60 minutes

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

1. Identify the different types of teeth.
2. State the functions of incisors, canines, molars, and premolars.
3. Explain the importance of each type of tooth in eating.

Key Words:

• Incisors
• Canines
• Molars
• Premolars
• Teeth

Entry Behaviour: Pupils are familiar with the basic parts of the mouth.

Learning Resources and Materials:

• Chart showing different types of teeth.
• Models of teeth.
• Pictures of various foods and the teeth used to eat them.

Building Background/Connection to Prior Knowledge: Pupils have previously learned about the mouth and its parts such as the tongue and lips.

Embedded Core Skills:

• Observation
• Identification
• Critical thinking

Learning Materials:

• Tooth models
• Diagrams
• Flashcards

Reference Books:

• Lagos State Scheme of Work for Primary 4
• Basic Science Textbook for Primary 4

Instructional Materials:

• Tooth models
• Diagrams
• Flashcards
• Picture charts

Content:

• Incisors: Front teeth used for cutting food.
• Canines: Pointed teeth used for tearing food.
• Molars: Large, flat teeth used for grinding food.
• Premolars: Teeth used for chewing and grinding food, located between canines and molars.

Human Body: The Teeth

• Incisors: These are the front teeth used for biting into food like apples. 🍎
• Canines: Also known as “eye teeth,” these are pointed teeth used for tearing food. 🦷
• Molars: These are the large, flat teeth at the back of the mouth used for grinding food. 💪
• Premolars: Sometimes called “bicuspids,” these teeth help with chewing and grinding food. 🔄

Understanding our teeth helps us eat different foods and keep them healthy! 😁

Class Activity Discussion on The Teeth

1. What are incisors?
   • Incisors are the front teeth used for biting into food.
2. How many incisors does a person have?
   • A person typically has eight incisors, four on the top and four on the bottom.
3. What are canines?
   • Canines are pointed teeth used for tearing food.
4. How many canines are there in the human mouth?
   • There are four canines, two on the top and two on the bottom.
5. What is the main function of molars?
   • Molars are used for grinding and chewing food.
6. How many molars does an adult have?
   • An adult usually has twelve molars, including four wisdom teeth.
7. What are premolars?
   • Premolars are teeth that help in chewing and grinding food, located between canines and molars.
8. How many premolars are there in a human mouth?
   • There are eight premolars, four on the top and four on the bottom.
9. Why are canines important?
   • Canines help in tearing food, especially meat.
10. Where are incisors located?
    • Incisors are located at the front of the mouth.
11. What is another name for canines?
    • Canines are also called “eye teeth.”
12. Which teeth are used for biting into an apple?
    • Incisors are used for biting into an apple.
13. Which teeth are flat and large at the back of the mouth?
    • Molars are flat and large teeth at the back of the mouth.
14. What is the role of premolars in eating?
    • Premolars help to chew and grind food.
15. How can we take care of our teeth?
    • We can take care of our teeth by brushing them twice a day and visiting the dentist regularly.

Evaluation

1. The front teeth used for biting into food are called __________. a) molars b) incisors c) canines d) premolars
2. Which teeth are pointed and used for tearing food? a) incisors b) molars c) canines d) premolars
3. The large, flat teeth at the back of the mouth are called __________. a) premolars b) canines c) incisors d) molars
4. What are the teeth called that help with chewing and grinding food? a) canines b) molars c) incisors d) premolars
5. The teeth used for grinding food are called __________. a) canines b) incisors c) premolars d) molars
6. Which teeth are sometimes called “eye teeth”? a) incisors b) premolars c) molars d) canines
7. What type of teeth are at the back of the mouth? a) incisors b) canines c) molars d) premolars
8. Which teeth are used for tearing food? a) premolars b) molars c) canines d) incisors
9. What are the pointed teeth called? a) premolars b) incisors c) molars d) canines
10. Which teeth are used for biting into food? a) molars b) canines c) premolars d) incisors
11. What type of teeth are found at the front of the mouth? a) molars b) canines c) premolars d) incisors
12. The teeth used for grinding and chewing food are __________. a) canines b) incisors c) molars d) premolars
13. Which teeth are used for tearing meat? a) incisors b) molars c) canines d) premolars
14. What are the teeth called that help with biting and cutting food? a) molars b) premolars c) incisors d) canines
15. The teeth at the back of the mouth are called __________. a) canines b) premolars c) incisors d) molars

Presentation:

Step 1: Revising the Previous Topic

• The teacher revises the previous topic about the tongue and lips.
• Questions: “What are the functions of the tongue?” “What role do lips play in eating?”

Step 2: Introducing the New Topic

• The teacher introduces the new topic by showing a chart of the teeth.
• Explanation: “Today, we will learn about the different types of teeth in our mouth and their functions.”

Step 3: Class Contributions and Corrections

• The teacher asks pupils to feel their teeth with their tongue and describe what they notice.
• Pupils share their observations, and the teacher corrects any misconceptions.

Teacher’s Activities:

1. Explain the function of each type of tooth.
2. Show models and diagrams of the teeth.
3. Ask questions to engage pupils.

Learners’ Activities:

1. Observe the models and diagrams.
2. Feel their own teeth and discuss in pairs.
3. Answer questions and participate in discussions.

Assessment:

• Observation of pupils’ participation.
• Questions during the lesson.

Evaluation Questions:

1. What are the front teeth called?
   • a) Molars
   • b) Canines
   • c) Incisors
   • d) Premolars
2. What is the main function of canines?
   • a) Cutting
   • b) Tearing
   • c) Grinding
   • d) Chewing
3. How many incisors does a person have?
   • a) Four
   • b) Eight
   • c) Six
   • d) Ten
4. Which teeth are used for grinding food?
   • a) Incisors
   • b) Canines
   • c) Molars
   • d) Premolars
5. Where are premolars located?
   • a) Front of the mouth
   • b) Between canines and molars
   • c) Only on the top
   • d) Only on the bottom
6. What are the flat teeth at the back of the mouth called?
   • a) Incisors
   • b) Canines
   • c) Molars
   • d) Premolars
7. What type of teeth are used for biting into an apple?
   • a) Incisors
   • b) Canines
   • c) Molars
   • d) Premolars
8. How many canines does a human have?
   • a) Two
   • b) Four
   • c) Six
   • d) Eight
9. What is another name for canines?
   • a) Eye teeth
   • b) Cutting teeth
   • c) Grinding teeth
   • d) Chewing teeth
10. Which teeth help in chewing and grinding food?
    • a) Incisors
    • b) Canines
    • c) Molars
    • d) Premolars

Conclusion:

• The teacher summarizes the lesson by revisiting the key points.
• The teacher goes around to mark pupils’ work and provide feedback.

Notes: Ensure that all pupils are engaged and understand the lesson by asking questions and encouraging participation. Use visuals and models to aid understanding.