IDA blend - Pupil-teacher ratio, primary

Pupil-teacher ratio, primary in IDA blend was 34.27 as of 2018. Its highest value over the past 48 years was 40.28 in 2012, while its lowest value was 33.08 in 1978.

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

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

See also:

Year Value
1970 34.96
1971 34.66
1972 34.16
1973 34.99
1974 34.88
1975 34.65
1976 34.65
1977 35.15
1978 33.08
1979 33.83
1980 34.71
1981 34.63
1982 35.32
1983 34.84
1984 35.63
1985 36.77
1986 37.55
1987 38.38
1988 37.44
1989 35.93
1990 37.34
1991 36.54
1992 35.83
1993 35.21
1994 35.07
1995 34.86
1996 33.50
1997 34.20
1998 34.62
1999 35.88
2000 36.49
2001 36.19
2002 36.69
2003 34.96
2004 36.22
2005 36.94
2006 38.23
2007 40.25
2008 39.65
2009 38.51
2010 38.18
2011 35.91
2012 40.28
2013 34.44
2014 34.23
2015 34.17
2016 34.73
2017 34.27
2018 34.27

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