Page 24 - 新思维科学教师用书8 试读样张

SCIENCE 8 TEACHER’S RESOURCE

Homework ideas Topic worksheets
1 Workbook exercise 1.1 Worksheet 1.1 A, journey into the lungs
2 Worksheet 1.1

Topic 1.2: Gas exchange

LEARNING PLAN

Learning objectives Learning intentions Success criteria

8Bs.03 Describe how the • Learn how gas exchange • Describe how gas exchange
structure of the human takes place. takes place in the alveoli.
respiratory system is related
to its function (in terms of lung • Use a model and analogies to • Relate the results of an
structure and the action of explore why alveoli are very experiment using agar jelly
the diaphragm and intercostal small. and dye to gas exchange in
muscles) and understand the • Do an experiment to compare the lungs.
difference between breathing the carbon dioxide content of • Interpret results of an
and respiration. inspired and expired air. experiment to compare the
8Bs.04 Describe the diffusion • Analyse data on lung surface proportion of carbon dioxide
of oxygen and carbon dioxide area and suggest explanations in expired air with inspired air.
between blood and the air in the for relationships.
lungs.
8TWSm.01 Describe what an
analogy is and how it can be
used as a model.
8TWSp.05 Make risk
assessments for practical work to
identify and control risks.

8TWSm.02 Use an existing
analogy for a purpose.
8TWSc.05 Carry out practical
work safely, supported by risk
assessments where appropriate.

8TWSc.07 Collect and record
sufficient observations and/or
measurements in an
appropriate form.
8TWSa.02 Describe trends and
patterns in results, including
identifying any anomalous results.

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