What: Turn the car around safely to face the opposite direction by using forward and reverse gears

How: Discuss the routine and consider safety aspects, followed by a demonstration if required and then guided practice

By the end of the lesson: Be able to turn the car around safely and with little or no help

Keep the car as slow as possible and steer quckly for any maneouvre (Slow Car Fast Steering)

Why: Test / Dead Ends / Wrong Turns

Where:

A safe, conveinient and legal place (SCALP) 
Away from pedestrians and children
Away from obstructions (trees, lamposts, other street furnature)
A wide enough road, (length of vehicle V width of road)

Observation:

360 degree observations before moving  (6 point check) 
Look mainly in the direction of travel with regular checks all around the vehicle
Ensure you understand other road users intentions (Eye Contact)

Control:

Very slow car, effective use of clutch control or brake control
Very fast steering (Big Steering Movements)
Use full lock

Method:

Follow the method described / demonstrated by your driving instructor

Driving The Essential Skills (Pg. 183)
The Official Driving Test (Pg. 37)