The number of schoolchildren in the State is expected to increase by 19 per cent over the next decade, presenting new challenges for school planners and developers, according to the OECD report.
The projected rise suggests that the Leaving Cert points race may become more competitive again in the future.
It had eased somewhat owing to a decrease in the numbers sitting the exam and an increase in the number of courses available.
However, the Education at a Glance 2006 report found that while a declining school population had been a feature of Ireland's demography for some time, this has now been reversed.
It signals the need for increased planning by the Department of Education in identifying the number of new school buildings required in the most rapidly expanding areas in the country.
The report ranks Ireland 20th out of 30 countries in terms of the ratio of students to computers in schools. It also reveals that there is only one computer for every nine to 10 second-level students in Ireland and that the principals of 50 per cent of students believed instruction was hindered by the shortage of technology resources.
Ireland compared dismally with countries such as the United States where one computer is available for every three children.
Following controversy surrounding overcrowding in Irish classrooms, the OECD found that, on average, there were four extra pupils in Irish primary classes compared to other EU countries. The average class size of 24 in Ireland remains higher than the average across OECD countries, which is 20.3.
Analysis and comparisons of teachers' salaries after 15 years service shows that teachers in the State enjoy the eighth-best salary in the OECD, averaging about €44,000.
The number of hours worked by primary school teachers in Ireland is above the OECD average of 805 hours per annum.