Today

1
Todays objectives MUST Be able to say why
coastal defences are needed. LEVEL 4 SHOULD Be
able to explain how coastal defences work. LEVEL
5 COULD Be able to explain how coastal defences
affect people. LEVEL 6
2
Title Coastal Defences Well watch a short
clip (4 mins) from the BBC news. You must write
a sentence to say why Britains coastline needs
protecting from the sea.
2 hours later
3

• Title Longshore Drift
• Copy this diagram into your books.
• Explain how sediment (sand) is moved along a
  beach.

4
Make a table like this in your exercise books
Type of coastal defence How it works Whats good about it (advantages) Whats bad about it (disadvantages)






Fill in as much of the table as you can whilst we
go through the next few slides.
5
Click to animate
6
Rock Armour
7
Wooden Groynes
8
Rock Groynes
9
Gabions
10
Curved Sea Wall
11
Individual households taking action.
12

1. Which do you think is the best type of coastal
   defence and why?
2. If coastal defences are so easy to build, why
   dont we just build more of them?

EXTENSION Is coastal erosion a problem here?
If not, does that mean that people are the
problem, not erosion? If people are the problem,
could we just tell them to move house?
13

• Choose one person from this list
• Local resident
• Politician
• Someone living in Birmingham
• Local shop keeper
• Write a paragraph to explain what this person
  would want to happen to the Norfolk coastline.