I just got this in an email from the CEO of the BMAA....
From the Secretary of State for Transport.
Flight instruction and/or examining is not allowed in England during the forthcoming Lockdown.
There is no outright prevention of General Aviation flying.
So I shall be very glad of having a share parked on the grass at an airfield with self service pumps for a bit of personal flying, but I somehow doubt I'll be doing any instructing this month.
G