Wales will find out later where its education system ranks, compared with the rest of the world.
The rankings are decided by the results of the so-called PISA tests, which are taken by 15 year-olds from more than 70 countries.
The tests, by the Programme for International Student Assessment (PISA), form the world's biggest international education survey.
They are held once every three years and test students on their maths, reading and science skills.
In 2012 Wales’ results were worse than all other parts of the UK and below the PISA average.
The results for 2015 will be published at 10am.
Tuesday will have a murky start with widespread fog, mist and low cloud.Read the full story ›
League Two Newport County will travel to Anfield to face Liverpool after the FA Cup third round draw.
But this will mean having to beat Plymouth Argyle next Tuesday.
Swansea will face Hull City and Cardiff City will take on Fulham.
Ties will take place between January 6 and January 9.
Newport County AFC will face Liverpool in the FA Cup Third Round if we beat Plymouth Argyle next Tuesday
Welsh referee Nigel Owens has called on people who feel suicidal to open up and not be afraid to talk about it.
It comes as two mothers speak to ITV Wales about the death of their sons.
They've also called for people, men in particular to talk openly about their feelings. You can see that report here.
Nigel Owens has spoken publicly about his battle with depression and thoughts of suicide.
He told ITV Wales that help is available and people shouldn't be afraid to come forward.
Betsi Cadwaladr University Health Board has said that emergency departments are extremely busy at present.
Our Emergency Departments are extremely busy at present. Only choose if suffering with a serious illness or injury:… https://t.co/G8v0RT2WMK
The health board is asking patients to access treatment at minor injury units or pharmacies where possible.
Llanberis Mountain Rescue Team is now the busiest in the UK after attending a record-breaking 200 incidents so far this year.Read the full story ›
Two thirds of parents don't fully understand the right height age and weight regulations when it comes to their children's car seats.Read the full story ›
Today will be milder and less windy than yesterday for many, but rather cloudy with some fog persisting for quite a while.Read the full story ›