EDD 5161A

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EDD 5161A Educational Communication Technology
Group 2 Chan Fung Yi Faustina Chan Tai Wai
David Cheung Pui Shan Roseanna Law Tak Man
Amanda
This PowerPoint Presentation Package is prepared
by
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Objectives
Biology is the study of living organisms. It
seems that this subject is so big that there are
a lot of facts for students to memorize.
However, studying biology is not as difficult as
many students think. To learn about the inside
of the body and how different parts work is
very exciting! Together with the recent
development of information technology, students
can become much more actively involve in the
learning processes. Therefore, Power Point,
Internet and other technology are used in this
lecture to produce text, graphics, video and
animation to try to make studying the types of
blood vessels, the structure of the heart and
the like easier and more enjoyable.
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Characteristics
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(No Transcript)
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Analyze learners
Class F.4 science students (Total40
students) Age 15-16 Grade Band 2 -
3 Altitude Passive and silent,
like creating approach, medium interest in
Biology Previous knowledge
1.The structure and composition of
mammalian blood 2. The functions of
blood
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User guide
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H K C E E Level Biology
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Blood Circulation in Man
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Contents

• Review

• Composition of blood

• Function of blood

• Blood Transfusion

• Human Blood Group

• Blood Circulation

• Blood vessels

• Heart

• Online Resources for Students Self-learning

• Homework

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Composition of Mammalian Blood
Blood Cell (45 by volume)
Plasma (55 by volume)
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Functions of Mammalian Blood

• Transport
• Defense against Infection
• Regulation

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In emergencies an injured person may die...
How can we save his life?
Any criteria for Blood Transfusion?
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Y E S
Do you know your blood group?
A
AB
B
O
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Human Blood Groups
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Human Blood Groups
Donor
Recipient
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Have you ever donated blood in the Hong Kong Red
Cross Blood Donation Center?
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Blood Circulation
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Blood Vessels
Artery
Vein
Are there any differences?
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Differences between Arteries Veins
1/ Direction of blood flow 2/ Pulse 3/ Pressure 4/
Wall 5/ Valves 6/ Lumen 7/ Blood content
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Differences between Arteries Veins
Arteries
Veins
1/ Direction of blood flow
Away from Heart
Return to Heart
?
?
2/ Pulse
3/ Pressure
High
Low
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Differences between Arteries Veins
Arteries
Veins
4/ Wall
Thick
Thin
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Differences between Arteries Veins
Arteries
Veins
?
5/ Valves
?
Except the pulmonary artery
Prevent back-flow
Whats the use of valve?
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Valves promote One-way Flow
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Muscle Contraction supports blood flow in
Veins
Muscle contracted
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Differences between Arteries Veins
6/Lumen 7/Blood content
Small
Large
Oxygenated
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Checkpoint
State any three differences between Arteries and
Veins.
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Capillaries

• Smallest blood vessels

Diffusion
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Checkpoint
Which have the greatest lowest blood pressure,
Artery, Vein or Capillary?
Greatest Artery
Lowest Vein
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Blood Circulation in Man
Introduction
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H e a r t
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H e a r t
Human Heart Video
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Online Resources for Students Self-learning
1/ You can ask question get answer. Please
feel free to visit this web site. http//www.schoo
l.net.hk/question/Biology/question1.html 2/ This
is a self-learning homepage and the name is
The Heart An Online Exploration http//sln.fi.edu
/biosci/heart.html Some information about
this site Explore the heart. Discover the
complexities of its development and structure.
Follow the blood through the blood vessels.
Wander through the web like body systems.
Learn how to have a healthy heart and how to
monitor your heart's health. Look back at the
history of heart science.
Go to Web Site gt
Go to Web Site gt
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Homework
1. Can a person with blood group B donate his
blood to a person with blood group A?
Why? 2. Compare explain the oxygen content
of blood in arteries veins in a living
mammal. 3. Draw label a mammalian heart.
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Good Bye Class