This is the 5th element of the MSPSL routine where we are talking about speed and gear element. The key to success is discussed, covering plan and anticipate - early instruction, slow speed down and lower gear and give your decision making time (so you can look, assess decide and act).
We have a e-book which covers this in more detail which is currently available to read free on Kindle amazon...see link below
https://www.amazon.co.uk/Supervising-Learner-Driver-Successful-Practice-ebook/dp/B08GSRNVHS