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lesson plan , circulatory organ heart

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Lesson Plan
ROUTINE INFORMATION
Date: 13 February 2019
DAY: Morning
Name of School:
Student surname and name:
Ngcobo Nokubonga
Student number:
Grade:
10A
Subject:
Life Sciences
Topic:
Plant and animal tissues
Concept area:
CAPS page no:
Animal tissue: Nerve tissue
Applications of indigenous Knowledge
Systems and Biotechnology
28
Duration:
53 min
Classroom
30 students
Specific aim:
To develop their knowledge and process skills at different conceptualization and
metacognitive levels and improve their procedural skills
LESSON OBJECTIVES:
To know the circulatory system of the blood and the central core organ responsible to carry
this functional system. To recall the structure and various functions of each structure in the
heart and to also show the blood flow individually in the heart compartments and understand
the importance of compartmentalization within the heart organ.
SKILLS:
Learners should be able to recognize the location of the heart and explain different parts of
the heart through recalling the terms such as aorta, veins, arteries and valves. Through
recalling the learner should be able to state the functions of that particular structure
supported by the importance of such function. Also have the curiosity to collect more
information about the heart and its role in circulation in-order to improve their individual logic
based on the blood circulatory concept.
VALUES:
The learner should develop scientific attitude towards the basic and the scientific heart
structure, and also show awareness regarding possible heart mal-functionality and predict
what could be the cause based on the knowledge learnt.
APPROACH/TEACHING METHOD
Question and answer strategy/ individual work / group work
RESOURCES:
POWER POINT, Chalkboard and study guide
INTRODUCTION:
Learners will be asked to engage in the FEEL YOUR HEART BEAT action exercise on both
their wrist temple of the left hand and the chest.
One random learner to draw a heart emoji on the board.
Have them imagine and think where the foetus obtains the blood from.
Pose a question: what is the heart and where is it located?
DEVELOPMENT:
Step 1:
Discuss what is the heart, where is it located and what is it’s function.
Ask them what they felt and what was the purpose of the FEEL YOUR HEART BEAT
exercise.
Learners should respond orally and I will select and filter important and specific answers and
write them on the board:
Expected answers:
-
What is heart?
The love location/ organ (that pumps blood)
Location
On the thoracic cavity/ behind the left lung/ rib cage.
What is the heart’s function?
Love/ pump blood/ facilitate nutrient distribution.
Step 2:
Tell them about the biological systems and biological processes.
-Write on the board the organizational function
Input ----- processing-----output/outcome
relate it to everyday science such as food intake to obtain energy.
Step 3:
The blood circulatory system.
Draw the heart chambers, show valves introduce the terminology of the structural
organization step by step.
Thereafter, show blood circulation:
-
on entry and on exit, relate to the contractions and relaxation to facilitate pumping.
Define vein and artery, ask the difference between the two:
Expected answers- (a) the direction they carry blood to/fro
(b) types of bloods they carry deoxygenated/ oxygenated blood.
Step 4
Having learnt about the heart structure and its function. The class is then organised in
groups with where label their own heart structure provided in the worksheet which is a
complete structure. From then any learner from a particular group is randomly selected to
come and stick relevant explanation/label a particular heart structure/ the missing piece of
the heart that is provided in the interactive chart.
CONSOLIDATION:
1.
2.
3.
4.
5.
Heart is located between the lungs inclinating to the left.
The heart is the size of a person’s fist.
It is conical in shape.
Is lined by the outer fibrous tissue sac.
It relaxes and contracts in milliseconds.
ASSESMENT
1. Worksheet
REFERENCES:
1.
2.
3.
4.
CAPS Document for Life Sciences
Textbook
Syavula textbook
Google images for the heart structure.
Work sheet
Date: __________________
Grade:_________
Name and surname: ________________
1. Complete label the heart structure. (15)
2.
(2)
3. In the structure figure no. 1, it is noticed that the left cardiac muscle is much
bigger in size, discuss what the possible scientific reason behind this is.(5)
4. A patient with a non/little flexible tricuspid valve history, gets admitted to the
hospital due to heart failure and stroke on the upper body part. Deduct what
could be the possible issue regarding the overall heart system.(5)
Model answer
Work sheet
Date: 02 February 2019
Grade: 10A
Name and surname: Ngcobo Nokubonga
1.
Complete label the heart structure. (15)
3.
In the structure figure no. 1, it is noticed that the left cardiac muscle is much bigger in
size, discuss what the possible scientific reason behind this is.




Maintain pressure
Pump blood up to the body and ensure distribution force, the push force
Assist with the contraction and relaxation movements required to facilitate blood flow
Support the functions of the semi-lunar valves since they operate in a one way flow,
compared to the tricuspid valve.
4.
A patient with a non/little flexible tricuspid valve history, gets admitted to the hospital
due to heart failure and stroke on the upper body part. Deduct what could be the possible
issue regarding the overall heart system.
The is a right atrium tricuspid valve which allows flow of blood from vena-cava vein the to the
right ventricle . When this valve does not open/close properly, this may result to huge
amounts of blood flowing into the right ventricle which may result to expansion of the
ventricle or no order in the right hand side of the heart and huge amounts of blood flowing to
the lungs which may have an effect on the respiration rate thus resulting in a patient’s
current condition. A stroke occurs when the blood supply to part of your brain is interrupted
or reduced, depriving brain tissue of oxygen and nutrients. Within minutes, brain cells begin
to die.
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