Average number of years of formal education for teachers and instructors as of the end of the reporting period.
Teaching Experience (PI7871)
- Reporting Format Unit Referenced within Metric Definition
- Metric Type Metric
- Metric Level Product/Service, Organization
- IRIS Metric Citation IRIS, 2021. Teaching Experience (PI7871). v5.2.
Footnote
Organizations should footnote all assumptions used, including details on how years of teaching experience are tracked.
Usage Guidance
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This metric is intended to capture the efficiency of teachers employed by the school as a proxy for the quality of education provided. Studies have shown that experience has the strongest impact over the first few years of teaching, after which marginal returns diminish. Research also shows that high-poverty schools tend to have a greater proportion of teachers with fewer than three years of experience.
Impact Categories & Themes
SDG Goals & Targets
No Poverty
- SDG Target 1.4
Quality Education
- SDG Target 4.1
- SDG Target 4.2
- SDG Target 4.3
- SDG Target 4.4
- SDG Target 4.5
Reduced Inequality
- SDG Target 10.2
- SDG Target 10.3
Metric History
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June 2025 - IRIS+ v5.3b Released (current version)
No change.
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December 2024 - IRIS+ v5.3a Released
No change.
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June 2022 - IRIS+ v5.3 Released
Immaterial change. Minor revisions to definition and usage guidance for clarity.
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May 2021 - IRIS+ v5.2 Released
No change.
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January 2020 - IRIS+ v5.1 Released
No change.
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May 2019 - IRIS+ v5.0 Released
No change.
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March 2016 - IRIS+ v4.0 Released
No change.
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March 2014 - IRIS+ v3.0 Released
No change.
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November 2011 - IRIS+ v2.2 Released
No change.
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February 2011 - IRIS+ v2.1 Released
No change.
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September 2010 - IRIS+ v2.0 Released
Immaterial change. Teaching Experience (PI7871) replaced Educator Experience: Years Teaching (ED20). IRIS ID / metric name changed due to framework upgrade.
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September 2009 - IRIS+ v1.0 Released
New metric. Educator Experience: Years Teaching (ED20) was developed via the Original IRIS Working Group.