Schools in Korea have very positive disciplinary climates in science lessons compared to other OECD countries, according to students’ reports in the Programme for International Student Assessment (PISA) 2015, with an index of disciplinary climate of 0.63 (the average index value was 0.00). Student truancy in 2015 was among the lowest in the OECD: 1.9% of 15‑year-olds reported skipping at least one day of school in the two weeks before the PISA 2015 test, compared to the OECD average of 19.7%. However, students in Korea were more likely to report that their science teachers adapt their instructions less frequently than the OECD average, with an index of adaptive instruction of -0.05 (the average index value was 0.01) (OECD, 2016[1]).
The PISA 2015 index of instructional educational leadership (measuring the frequency with which principals report doing leadership activities specifically related to instruction) was lower than the OECD average at -0.2 (the average index value was 0.01) (OECD, 2016[1]). The proportion of lower secondary teachers in 2016 aged 50 or over was 28%, which was below the OECD average of 35.4%. In 2017, teachers in Korea had fewer net teaching hours for general programmes than the OECD average. Teachers annually taught 671 hours at primary level and 533 hours at lower secondary level, compared to averages of 784 and 696 hours, respectively (OECD, 2018[2]). According to school principals’ self-reports in PISA 2015, schools in Korea have one of the highest levels of autonomy over curriculum: 95.2% of principals reported that the school has primary autonomy over curriculum, compared to the OECD average of 73.4% (OECD, 2016[1]).
According to the OECD Teaching and Learning International Survey (TALIS) 2018, 67% of teachers in Korea said that if they could choose again, they would still become a teacher; this was lower than the OECD average of 75.6%. Furthermore, 67% of teachers felt that the teaching profession was valued in society, compared to an OECD average of 25.8% in 2018 (OECD, 2019[3]).
According to school leaders’ reports in PISA 2015, school leaders in Korea are more likely than average to conduct self-evaluations of their schools (99.5% of students were in schools whose principal reported this, compared to the OECD average of 93.2%). They are also more likely than average to undergo external evaluations of their schools (86.3% of students were in schools whose principal reported this, compared to the OECD average of 74.6%) (OECD, 2016[1]). Teacher appraisal levels, as reported in in the earlier cycle of TALIS 2013, were the highest among TALIS 2013 participants: 96.8% of all teachers had reported then having received an appraisal in the previous 12 months, compared to an average of 66.1% (OECD, 2014[4]).
The share of students enrolled in secondary schools whose principal reported in PISA 2015 that standardised tests are used to make decisions on students’ promotion or retention was 28%, which was less than the OECD average of 31% (OECD, 2016[1]).
In 2017, school autonomy levels over resource management (allocation and use of resources for teaching staff and principals) were slightly lower than the OECD average: 25% of decisions in Korea were taken at the school level, compared to the OECD average of 29%.
Annual expenditure per student at primary level in 2015 was USD 11 047 in Korea, which was higher than the OECD average of USD 8 631. At secondary level, Korea spent USD 12 202 per student compared to the OECD average of USD 10 010, while at tertiary level (including spending on research and development), Korea spent USD 10 109 per student compared to the OECD average of USD 15 656. In 2015, expenditure on primary to tertiary education in Korea as a proportion of gross domestic product (GDP) was 5.8%, which was higher than the OECD average of 5%. The proportion of expenditure on education (from primary to tertiary) coming from private sources (including household expenditure, expenditure from other private entities and international sources) in 2015 was higher than the OECD average at 28.9% of overall spending, compared to 16.1% (OECD, 2018[2]).