Skill of Stimulus Variation

Lesson Plan

Class : 9^th standard

Subject : Science

Topic: Skeleton

Teacher : Children, Today I am going to teach about the skeletal system. Try to be attentive. (The teacher focuses the pupils’ attention verbally)

Pupil : Okay Madam. How many bones are there in a human skeleton?

Teacher : 206 bones. Do you know how they are classified? (Looks at the pupil)

Pupil : 2 types madam

Teacher : Yes, it is divided into 2 types. (The teacher’s little bit louder) They are Axial skeleton and Appendicular skeleton. (The teacher stress’s his voice and says) The axial skeleton is again sub divided into 3 types. They are (The teacher counts by her fingers) 1.Skull, 2.Vertibral column and 3.Ribs and Sternum. (The teacher raises his voice) Then the Appendicular skeleton is again divided into two types, they are, the Pectoral Girdle and Bones of the fore Limbs and the Pelvic Girdle and the Bones of hind Limbs. (Teacher shows the classification chart and explains)

Pupil : (All are attentive and curious to know more about the skeleton system)

Teacher : The Axial skeletol bones are 80 in number and appendicular skeletal bones are 126 in number. Then what is the total number of bones? (The teacher moves in the class, while asking the question she nods his head)

Pupil : 206 bones, Madam

Teacher : Yes, You are right.

Look at this diagram (The teacher shows the chart of vertebral column) The vertebral column has a characteristic curve. It has five distinct regions. It has five distinct regions. Listen carefully to this.

Pupil : (All are listening carefully)

Teacher : Cervical region (The teacher touches his neck portion.) Neck region.

Thoracic vertebra (The teacher touches his chest region) Chest region.

Lumbar region (The teacher touches his abdominal region) abdominal

Region Sacrum Region (The teacher touches his hip region) hip region

Coccyx Region (The teacher touches his vestigial region) vestigial region

Do you know which the largest bone in our body is? Maala?

Maala : Yes Madam, it is the femur bone.

Teacher : Where is it found in the human body (The teacher points to Latha)

Latha : It is located in the thigh Madam.

Teacher : Can you name the smallest bone in the human body? (The teacher points to Radha)

Radha : The smallest bone is the Stapes, madam.

Teacher : (Teacher pauses and looks at Geetha)

Geetha : It is inside the ear, madam.

Teacher : (The teacher shows the video about the skeletal system)

Teacher : Thank You, Children. I hope you all understand about the human skeleton system.