Iran - Pupil-teacher ratio, primary

Pupil-teacher ratio, primary in Iran was 28.52 as of 2017. Its highest value over the past 46 years was 35.49 in 1973, while its lowest value was 19.93 in 1983.

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
1971 32.44
1972 31.33
1973 35.49
1974 30.38
1975 30.51
1976 29.38
1977 28.48
1978 32.48
1982 27.41
1983 19.93
1984 20.16
1985 20.61
1986 21.92
1987 28.03
1988 29.34
1989 29.89
1991 31.36
1992 31.34
1993 31.87
1994 31.66
1995 31.91
1996 32.87
1997 31.76
1998 30.41
1999 26.51
2000 26.15
2001 25.32
2002 24.38
2003 23.61
2004 22.60
2005 21.74
2006 21.85
2007 21.79
2008 21.33
2009 20.49
2013 25.65
2014 25.92
2015 26.77
2016 27.32
2017 28.52

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