We are already spending a lot in education - so their maybe no wriggle room to spend more.
CBC basically need 2 or 3 teachers in class. It very intensive teaching and evaluation on the go. Evaluation is done every lesson!
I am not sure public or even private school can afford to have 2 -3 teachers in every classroom. My kid attend Cambridge education system, typical they have 2-3 teachers in every class - they do exams every Tuesday -but we pay an arm and a leg.
What gov need to do instead is to adopt innovation like Bridges International - where teachers and students are armed with tablets - that would make it easy - to conduct CBC.
But nobody is listening. They don't want Bridges - yet Bridges International have achieved a lot with 'slum' schools.