Teachers rallied together in Haven Green, Ealing , on Tuesday morning (July 5) during a National Union of Teachers (NUT) strike.
Thousands of children across the country missed lessons today after 91.7% of NUT teachers backed a walkout.
Banners displaying slogans such as 'Education is a right not a privilege' were displayed as teachers gathered in the sunshine, with some wearing NUT armbands and waving small flags.
Teachers at the rally expressed anger over funding, increased class sizes, fewer subjects for children and too much focus on exams.
Divisions secretary for Ealing NUT, Stefan Simms, addressed the crowd through a megaphone and was cheered on by those in attendance on the west side of the green.
Mr Simms said: "So many of us are leaving the profession demoralised that there is an absolutely recruitment crisis anywhere in the country especially in London, because if you're a young teacher you can't afford to live in London".
He also took aim at education secretary Nicky Morgan, who he argued had failed to address the concerns of teachers and was ducking questions.
The rally also saw speeches from a junior doctor and two traffic wardens, adding a sense of cross-industry allegiance to the strike.
'Protect the rights'
Primary school teacher Nicola Wilson, who runs a Year 2 class at Viking Primary School in Northolt, said: "I am here to protect the rights to children's education.
"I am a state school person, from a council estate and through education I have been able to improve".
Other teachers expressed their dismay at an excessive focus on exams, arguing that a robust pursuit of good grades in English and Maths were muscling out progression in subjects like art.
Parent Julia McSweeney said: "I don't see the point of Year 2 SATs, it is all geared up to getting kids ready to do these tests.
"It interferes with other subjects, kids need other things apart from Maths and literature".
'I am supporting our teachers'
Parent Elise Brugues, who has two children at Holy Family Catholic Primary School, said: "I am here supporting our teachers because it is vital to a good work environment.
"I don't see how they can more pressure on them".
Reception teacher Colette Quinlivan, one of the founding teachers at Holy Family Catholic Primary School when it opened in West Acton four years ago, said: "It is simply just not possible to fit in any more children and for it to be safe."