Act 'now or never' to hit 6,500 teachers target, report warns

All but five secondary subjects missed this year 's recruitment targets for new trainee teachers.

Labour promised to recruit 6,500 new expert teachers in key subjects by end of term.

Report says more funding will be needed from this summer 's spending review.

The government says "work has already begun" to reach its target, including investing 233 m next year .