IBRD only | Pupil-teacher ratio, preprimary

Preprimary school pupil-teacher ratio is the average number of pupils per teacher in preprimary school. Development relevance: The pupil-teacher ratio is often used to compare the quality of schooling across countries, but it is often weakly related to student learning and quality of education. Limitations and exceptions: The comparability of pupil-teacher ratios across countries is affected by the definition of teachers and by differences in class size by grade and in the number of hours taught, as well as the different practices countries employ such as part-time teachers, school shifts, and multi-grade classes. Moreover, the underlying enrollment levels are subject to a variety of reporting errors. Statistical concept and methodology: Pupil-teacher ratio is calculated by dividing the number of students at the specified level of education by the number of teachers at the same level of education. Data on education are collected by the UNESCO Institute for Statistics from official responses to its annual education survey. All the data are mapped to the International Standard Classification of Education (ISCED) to ensure the comparability of education programs at the international level. The current version was formally adopted by UNESCO Member States in 2011. The reference years reflect the school year for which the data are presented. In some countries the school year spans two calendar years (for example, from September 2010 to June 2011); in these cases the reference year refers to the year in which the school year ended (2011 in the example).
Publisher
The World Bank
Origin
IBRD only
Records
63
Source
IBRD only | Pupil-teacher ratio, preprimary
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973 15.72733
1974 15.98386
1975 16.05482
1976 17.15788
1977 18.83225
1978 17.66752
1979 17.66188
1980 18.11935
1981 18.83965
1982 18.31544
1983 18.20891
1984 18.00949
1985 17.9298
1986 18.06629
1987 18.16607
1988 18.33347
1989 18.45498
1990 17.97104
1991 17.78721
1992 18.31946
1993 19.20895
1994 19.3775
1995 19.56957
1996 19.6871
1997 19.44604
1998 19.43814
1999 18.4883
2000 17.23932
2001 17.60867
2002 17.19324
2003 16.66008
2004 16.45529
2005 15.82868
2006 16.71801
2007 16.68909
2008 16.68393
2009 17.17366
2010 17.71043
2011 17.65156
2012 17.86461
2013 18.42064
2014 17.90373
2015 17.60876
2016 17.37288
2017 16.95639
2018 16.72069
2019
2020
2021
2022

IBRD only | Pupil-teacher ratio, preprimary

Preprimary school pupil-teacher ratio is the average number of pupils per teacher in preprimary school. Development relevance: The pupil-teacher ratio is often used to compare the quality of schooling across countries, but it is often weakly related to student learning and quality of education. Limitations and exceptions: The comparability of pupil-teacher ratios across countries is affected by the definition of teachers and by differences in class size by grade and in the number of hours taught, as well as the different practices countries employ such as part-time teachers, school shifts, and multi-grade classes. Moreover, the underlying enrollment levels are subject to a variety of reporting errors. Statistical concept and methodology: Pupil-teacher ratio is calculated by dividing the number of students at the specified level of education by the number of teachers at the same level of education. Data on education are collected by the UNESCO Institute for Statistics from official responses to its annual education survey. All the data are mapped to the International Standard Classification of Education (ISCED) to ensure the comparability of education programs at the international level. The current version was formally adopted by UNESCO Member States in 2011. The reference years reflect the school year for which the data are presented. In some countries the school year spans two calendar years (for example, from September 2010 to June 2011); in these cases the reference year refers to the year in which the school year ended (2011 in the example).
Publisher
The World Bank
Origin
IBRD only
Records
63
Source