You will need:
Twine, rope or string
Scissors or a knife
A large rock
Look at the pictures of the four knots.
Practise making each of them.
What other knots can you find on the internet? Which is your favourite knot?
Test which one is the strongest by trying to lift the rock.
Record on your I pad how you tested the strength of the knot by trying to lift the rock
Can you think of times when the quick release knot will be useful?
Do a drawing of the quick release knot in action.
Write or say the instructions to help someone else make a quick release knot.