The purpose of this study is to investigate what content knowledge for teaching is expected for secondary
mathematics teachers in teacher education programs and teacher employment tests. By using the framework developed by
Ball, Thames, and Phelps (2008), we analyzed the required courses in 21 teacher education programs for secondary mathematics
and test items in teacher employment tests between 2006 and 2017. As a result, we found that subject matter knowledge
was more dominant than pedagogical content knowledge in both teacher education programs and teacher employment tests.
Even for the pedagogical content knowledge represented in teacher employment tests, there were more items for knowledge of
content and teaching than those for the other two different types of knowledge. We also noticed that the items required more
higher-order thinking and practical knowledge. Along with the 2015 revised national curriculum, teacher preparation programs
and teacher employment tests have shifted to respond to social changes and educational needs. This study gives meaningful
implications for future teacher education and teacher recruitment.