Some inaccuracies in the statement "南韓在所有OECD成員國中排名第1":
In 2012, South Korea ranked among OECD countries:
# 5 in Math, after Shanghai, Singapore, Hong Kong, and Taiwan
# 5 in Reading, after Shanghai, Hong Kong, Singapore, and Japan
# 7 in Science, after Shanghai, Hong Kong, Singapore, Japan, Finland and Estonia