This rate has been calculated by considering the fees at good independent schools in North Hillingdon. Annual rates at these schools are approximately £12,500 for 180 days of teaching, with each school day having five lessons. 'Doing the maths' we have...
£ 12,500.00 per year, divided by 180 days = £ 69.44 per day
then... £ 69.44 per day, divided by 5 lessons = £ 13.89 per hour
To ensure value-for-money, you can see that my fees are slightly lower that this rate and my class sizes are much smaller, with a maximum of six pupils per class. (NB Mathematics lessons in independent schools can serve up to 24 students per class.)