Introduction:
Phase 1: Grouping the data
The teacher asks the
students to list various bones of the body. The students list out bones like ribs, sternum, bones in hand,
bones in legs, skull bones, vertebral column
Activity 1
The teacher says, Can you classify these bones using
the data, which of these go together? Students group data labeled as group A
and group B
Group A
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Group B
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Bones in Hand
Bones in Leg
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Skull bones
Vertebral Column
Ribs
Chest Bones (sternum)
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Phase 2: Analysing the Concept
Teacher: - We have formed 2 groups of bones. Now let
us try to know more about them by comparing.
Whether the bones of group A and Group B share some
common attributes? What is that attribute or characteristic features?
Teacher: - Group A are bones that help in movement
and are called appendicular skeleton, they include pectoral girdle, bones in
hand, bones in leg and pelvic girdle.
Teacher: - What about group B?
Students respond – They are immobile
Teacher: - The bones which form a framework of body
is called axial Skelton which include skull bones, vertebral column, ribs,
chest bone (sternum) etc.
Can we put our conclusions?
Together the axial and appendicular system form
what?
Students respond as skeletal system.
The skeletal system forms the structural formwork of
the body. This framework is arranged in such a way that it enables us to do
various kinds of works. Our skeletal system is divided into 2 – the axial and
appendicular skeleton.
The bones which form framework of body is axial
skeleton, which includes skull bones, vertebral column, ribs, chest bone
(sternum) etc.
Bones which help in movement is appendicular
skeleton – pectoral girdle, bones in hand, bones in leg, pelvic girdle are
appendicular skeleton.
Teacher:- Very good, you have rightfully concluded.
Phase 3: Knowing the Concept
The teacher shows the
model of skeletal system and then the children point out the appendicular and
axial endoskeleton in the model and write down the bones in it, and their
functions. The teacher moves the
various bones of the skeleton system and shows how they work and explains it.
Phase 4: Discussion and
Evaluation:
The teacher asks the
students to discuss and evaluate the significance of skeleton system in man.
The teacher consolidates all the data
and discusses it with students.
Phase 5: Generalization
Teacher asks
(1)
How
important are bones to us?
(2)
How
will you maintain good bone health in our body?
(3)
Why
do old people walk slowly?
Activity (2)
The teacher asks the students to label
the parts of the skeletal system given in the diagram.
Formative assessment
Review Questions
1)
What
are the 2 types of skeletal system and their functions?
2)
How
will you maintain good bone health?
Follow up activity
Draw and label skeletal system of our body
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