IDA total - Pupil-teacher ratio, secondary

Pupil-teacher ratio, secondary in IDA total was 21.68 as of 2018. Its highest value over the past 47 years was 23.88 in 2001, while its lowest value was 19.23 in 1990.

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

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

See also:

Year Value
1971 19.78
1972 19.76
1973 19.90
1974 20.02
1975 20.20
1976 20.12
1977 20.29
1978 20.22
1979 20.41
1980 20.95
1981 21.18
1982 20.98
1983 21.32
1984 21.26
1985 21.72
1986 20.94
1987 20.39
1988 19.64
1989 19.33
1990 19.23
1991 19.38
1992 19.57
1993 19.64
1994 19.94
1995 20.76
1996 21.44
1997 22.06
1998 22.80
1999 23.39
2000 23.65
2001 23.88
2002 23.84
2003 23.51
2004 23.78
2005 23.07
2006 22.94
2007 22.72
2008 22.62
2009 22.65
2010 22.80
2011 21.86
2012 22.99
2013 22.15
2014 21.69
2015 21.40
2016 21.73
2017 21.28
2018 21.68

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