IBRD only - Pupil-teacher ratio, preprimary

Pupil-teacher ratio, preprimary in IBRD only was 16.72 as of 2018. Its highest value over the past 45 years was 19.69 in 1996, while its lowest value was 15.73 in 1973.

Definition: Preprimary school pupil-teacher ratio is the average number of pupils per teacher in preprimary school.

Source: UNESCO Institute for Statistics (http://uis.unesco.org/)

See also:

Year Value
1973 15.73
1974 15.98
1975 16.05
1976 17.16
1977 18.83
1978 17.67
1979 17.66
1980 18.12
1981 18.84
1982 18.32
1983 18.21
1984 18.01
1985 17.93
1986 18.07
1987 18.17
1988 18.33
1989 18.45
1990 17.97
1991 17.79
1992 18.32
1993 19.21
1994 19.38
1995 19.57
1996 19.69
1997 19.45
1998 19.44
1999 18.49
2000 17.24
2001 17.61
2002 17.19
2003 16.66
2004 16.46
2005 15.83
2006 16.72
2007 16.69
2008 16.68
2009 17.17
2010 17.71
2011 17.65
2012 17.86
2013 18.42
2014 17.90
2015 17.61
2016 17.37
2017 16.96
2018 16.72

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.

Other Notes: Data retrieved via API in March 2019. For detailed information on the observation level (e.g. National Estimation, UIS Estimation, or Category not applicable), please visit UIS.Stat (http://data.uis.unesco.org/).

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).

Aggregation method: Weighted average

Periodicity: Annual

Classification

Topic: Education Indicators

Sub-Topic: Inputs