Lesson Plan of Nervous System General Science Grade VIII

Lesson Plan of Nervous System

General Science Grade VIII

Students’ Learning Outcomes

·         Describe the structure and function of the nervous system.

·         Describe the working of the nervous system through a model.

Information for Teachers

·         The brain is a body part that assists as the center of the nervous system in all vertebrate and most invertebrate animals. The brain is situated in the head, commonly close to the sensory body part for senses such as vision.

·         The spinal cord (in yellow) attaches the brain to nerves all over the body.

·         The nervous system is the portion of an animal's body that directs its actions

·         The structural and functional unit of the nervous system is neuron.

·         The nervous system is a mean by which quick coordination among the various parts of the body is carried out.

·         Nervous system consolidates information of stimuli, comprehend it and formulate the type of response to be produce.

Concept Map

Material / Resources

Charts showing structure of brain, model showing working of nervous system

Worm up activity

·         Ask the question like there:

o   What is the role of brain in the body?

o   Where the spinal cord is present in your body?

o   Why there is a need of nervous system in our body?

o   After their response introduce the today’s topic.

Development

Activity 1

·         Show the chart or model of the nervous system to the students and explain the structure of nervous system along with the function of each part.

·         Draw the following table on the board and fill it with the help of students.

·         Ask the students to copy it on their notebooks.

Parts of nervous system	Function
Forebrain	The forebrain acting a central role in the processing of information connected to complex intellectual activities, sensory and associative functions, and voluntary motor activities. It embodies one of the three major developmental divisions of the brain; the other two are the midbrain and hindbrain.
Midbrain	The midbrain is a portion of the central nervous system connected with vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation
Hind brain	The hindbrain is to controls breathing and blood flow.
Spinal cord	The spinal cord’s  functions primarily in the transmission of neural signals between the brain and the rest of the body
Nerves	The nervous system of the body is responsible for several different activities, such as communicating, coordinating, controlling and regulating

Activity 2

·         Let the students suppose that one of the students saw an Rs.100 note lying on the floor. He bends down and picks it up.

·         Ask to them why this is so?

(Expected response: This is because of our nervous system)

·         Inform them that their sense organs send information to their brain all the time.

·         Now ask the following questions:

o   How does your brain know about the money?

o   Which receptor informs you about the presence of Rs.100 note?

o   What is your response to seeing the Rs. 100 note?

o   Which part of your body produced this response?

·         Inform the students that the receptors in their eyes send information to their brain. This is called nervous impulse. The central nervous system (CNS) decides the action and muscles in their arm produce the necessary movement to pick up the Rs. 100 note.

·         Further explain the topic by drawing the table on board as following:

·      

Activity 3

·         Ask the students to draw the sequence of stimulus, receptor, effectors, CNS and response according to their understanding from the above activity.

·         Draw the following diagram after the student’s response.

·      

Sum up / Conclusion

·         Sum up the lesson as: the nervous system is a means by which quick coordination of various parts of the body can be carried out.

·         It consists of central and peripheral system. Central nervous system consists of brain and spinal cord. Peripheral nervous system consists of two types of nervous. Sensory nervous take message from sensory organs to central nervous system and motor nervous take message from central nervous system to effector.

Assessment

Activity 1:

·         Share this with the students that some athletes are ready to start a race.  They must set off as fast as they can when they hear the sound of whistle.

·         Ask them to describe, step by step, what happens inside an athlete’s body when the whistle is blown.

Activity 2

·         Ask the students to enlist the names of receptors and effectors involved in the following daily life activity.

No.	Activity of the body	Receptor involved	Effector involved
1.	Reading a book
2.	Writing letter to a friend
3.	Talking to a friend
4.	Listening to a radio
5.	Looking for food
6.	Smelling the flower/perfume

Follow up

·         Ask the students to create a resemblance to relate the nervous system to a telecommunication system in their note books with the help of other resources.