The individual teachers would be wilfully refusing to comply with union directive by facilitating those things?
Yes, I’d say there are lots of individuals within schools doing what they normally did. They probably feel a sense of duty to the kids and will carry on regardless, for some it’s still a vocation as such, and refusing to do things (rightly or wrongly) will do what they feel is right to them. Course there are others who’ll use it to avoid work.
I’ve worked in a union environment for many years, I never once seen any benefits from it, but paid my dues and went on strike and still ended up taking a revised offer of the same offer that was offered in first place, but I was minus maybe four days and lost out on overtime!
How many years has this ‘industrial action’ taken place?