The government party leaders have agreed schools should reopen as planned on Thursday.
Taoiseach Micheal Martin, Tanaiste Leo Varadkar and Transport Minister Eamon Ryan discussed the issue at their meeting earlier.
Talks are ongoing between teachers' unions and the Education Minister over the Covid safety measures in place.
ASTI President Eamon Dennehy says staggering the reopening would help ease the pressure on schools.
"One of the mitigations there would be the staggered openings, that would reduce that problem to some extent while we try to get those other mitigations in place."
Both the TUI and ASTI have raised concerns about reopening in light of poor ventilation in schools and large staff absenteeism due to Covid-19.
Principal of Carlow Educate Together Simon Lewis says the funding supplied for HEPA filters for classrooms, didn't cover their full cost.
"If the government could centralize at the delivery of some of the Co2 monitors, they could have done the same for HEPA filters."
"I mean, that's something again that could be done."
"It's just, I suppose, from my point of view, it's so frustrating that there are solutions there, but they're just not being done."
"It seems to be just let get, get everyone into school on, keep your fingers crossed and hope for the best."
