AFRICA

Homework Instructions

• Due next lesson
• Read the Horrible Geography chapter ‘shifting shores’ (available on FROG)
• Write a summary in your independent learning log about what you have learned.
• Time allocated: 20 minutes

Initial Quiz Questions

• Quiz Component:
    - Name one of the three factors that affect the size of a wave.
    - Define the term ‘fetch’.
    - Give one reason why geographers are interested in coasts.
    - What is a spring tide?
    - What is the difference between a wave and a tide?

Initial Quiz Answers

• Factors affecting wave size:
    - Strength of wind
    - Length of time wind has been blowing
    - Fetch

• Definition of ‘fetch’:
    - The distance a wave has traveled.

• Reasons geographers are interested in coasts:
    - Ecosystems present along the coastline.
    - The vastness of coastlines.
    - The United Kingdom is predominantly a coastal place.

• Definition of spring tide:
    - Very high and low tides that occur due to the alignment of the sun and moon.

• Difference between wave and tide:
    - Waves are caused by friction of the wind against the water.
    - Tides are caused by the gravitational pull of the moon.

Visual Communications

• Visual Elements:
    - SEAVIEW
    - WISH YOU WERE HERE!!
    - DANGER
    - EROSION
    - CLIFF

Lesson Objectives

• LO1: Define the term “coastal erosion”.
• LO2: Explain how different types of coastal erosion change the coastline in different ways.
• LO3: Suggest some of the problems that coastal erosion may cause.

Definition of Coastal Erosion

• Coastal erosion definition:
    - Coastal erosion is the process of wearing away land and the removal of material on the coast, primarily caused by the action of waves.

Types of Coastal Erosion

1. Abrasion
2. Attrition
3. Hydraulic Action
4. Solution/Corrosion

Creative Task Activity

• Task Instructions:
    - You will be assigned a definition related to a different type of erosion.
    - Create a three-slide cartoon with captions to illustrate how this type of erosion occurs.

Group Activity Instructions

• Sharing Ideas:
    - Present your cartoon to the rest of your table.
    - The rest of your group will create a definition based on your cartoon without being given yours.
    - By the end of 5 minutes, each member should have a simple definition of each key term in their own words.

Factors Affecting Erosion Rates

• Discussion Topics:
    - Why do some places erode faster than others?
    - Factors that affect the rate of erosion include:
      - Jurassic Rocks
      - Chalk
      - Boulder
      - Permo-Trias
      - Clay
      - Speeton Clay

Climate Change Discussion

• Topic to Discuss:
    - Could climate change cause an increase in erosion rates?
    - Engage with your partner about potential reasons why climate change might lead to more erosion on the coast.
    - Be prepared to share your insights.

Self-Assessment Questions

• Test Yourself:
    - What is erosion?
    - Explain in detail one way in which waves erode rock.
    - Do you think the observed pebbles have been in the sea for a long time or a short time? Justify your opinion.
    - What factors lead to faster erosion rates?

Lesson Conclusion

• Final Activity:
    - Listen to an extract about Norfolk’s disappearing village.
    - Note down your thoughts and feelings regarding the impacts of coastal erosion on this specific community.

Reiterated Lesson Objectives

• LO1: Define the term “coastal erosion”.
• LO2: Explain how the different types of coastal erosion change the coastline in various ways.
• LO3: Begin to suggest some of the problems that coastal erosion may cause.