Have a quick look at this news piece from the BBC. The Left Hand of the Government; their School Inspectors (Ofsted) reckon that Science teachers should do more experiments and less working towards passing narrow tests. The Government's Right Hand introduced these narrow tests (SATS) and made them compulsory. Surprise, surprise; teachers are told by their Heads that they had better get good results in them and not waste time doing experiments. (All the interesting experiments that you and I did in Science have long since been banned by the Third Arm of Health and Safety, whilst the Fourth one of Compensation Culture encourages parents to sue the school when their offspring spills some harmless chemical on their sleeve.) The fifth urges more teaching of Creativity whilst the sixth issues ever more stifling bureaucracy and forms to fill out.
I realise I've overdone this One hand doesn't know what the other is doing thing, but it's too late to back out of it now. Hopefully the picture of a grinning octopus announcing Government policy has been implanted in your mind.
The article then says that Science Teaching suffers from lack of teachers who know about Science. Of course it does; how can we realistically attract the brightest and best when we can only offer them a salary that a tanker driver would turn his nose up at, the odd free biscuit and the opportunity to be abused on a regular basis. At the same time, Universities are busy closing down their Chemistry Departments to make way for a new extension to the Mickey Mouse Studies building.