The Welsh Conservatives say a return to grammar school-style education in Wales is needed to boost standards.
Under their proposals, children would be assessed at the age of 14 and encouraged to follow either academic or vocational studies.
The idea has been criticised by opponents for turning the clock back to a divisive and discredited system.
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A cold, crisp start to the day with lots of winter sunshine. Cloud will thicken from the west during the afternoon and winds will increase.
Clear skies this evening and overnight will allow for a widespread frost. A cold, crisp and bright start to Friday.
L/Cpl Joshua Leakey, 27, says he is an "average bloke" despite receiving the highest military honour for astonishing bravery in Afghanistan.