Scottish Government education secretary John Swinney will detail measures today to address the fallout of thousands of exam results being downgraded.
First Minister Nicola Sturgeon was forced to apologise yesterday after days of criticism, with the Scottish Qualifications Authority (SQA) downgrading teachers' estimates of pupils' attainment.
The normal exam diet was cancelled due to the coronavirus pandemic.
The moderation process conducted by the SQA was based on a school's past performance, but it led to students being unfairly downgraded when they might have otherwise received a higher grade.
It resulted in more than 125,000 entries being downgraded - about a quarter of all grades handed out by the SQA this year.
Pupils from the most deprived areas of Scotland had their grades reduced by 15.2% compared with 6.9% in the most affluent areas of Scotland.
The education secretary faced criticism from pupils , parents and teachers, with opposition politicians calling for him to resign.
John Swinney is set to face a vote of no confidence this week, tabled by Scottish Labour and supported by the Conservatives with the Lib Dems and Greens withholding judgement until after his statement on Tuesday.
He will update the Scottish Parliament on the government's latest plan this afternoon.
The First Minister said Swinney was the best person to fix the problem after she was asked yesterday by the BBC if she still had confidence in him.
Speaking at her coronavirus briefing on Monday, Nicola Sturgeon said: "Despite our best intentions, I do acknowledge we did not get this right and I'm sorry for that.
"The most immediate challenge is to resolve the grades awarded to pupils this year."
The First Minister would not be drawn on the exact details of the changes on Monday, but said the onus would be on government to correct unfair grades rather than pupils through the appeals process.
To receive one WhatsApp message a day with Edinburgh Live's headlines, as well as breaking news alerts, text NEWS to 07899067815. Then add the number to your contacts as 'Edinburgh Live'.
Nicola Sturgeon had defended the system, saying it was the only "credible" way of delivering results after exams were cancelled due to the pandemic.
However she said yesterday that after considering the matter she could not see pupils feel they had not been rewarded for their work, especially those from deprived areas.
