BBC Report this morning:
http://news.bbc.co.uk/1/hi/uk_politics/5361818.stm
Schools should be given cash incentives to take underperforming children, says Lib Dem education chief Sarah Teather.
Ms Teather will tell Lib Dem delegates that children's school prospects depend too much on what their parents earn.
She wants more funds targeted at children who underachieve, rather than just focusing money on deprived areas.
The "pupil premium" could encourage good schools to take on challenging children rather than leaving them to go to "sink schools", she says.
