A Prince's Trust study says more children are arriving for lessons hungry, dirty and struggling to concentrate.
In some cases ''scavenger'' pupils have been caught finishing scraps of food.
The findings are based on interviews with more than 500 secondary school teachers.
More top news
Unusually windy for the time of year with gales and big waves battering western coastlines.
Airbus have filed a patent for a supersonic aircraft that could travel from London to New York in an hour.
Natalie Sharp and Christine Bicknell appeared in court over an alleged incident at a Lidl superstore in Wallington, south London.