This article provides a brief introduction to critical pedagogy and further discussion on critical mathematics education. Critical mathematics education enables students to read the world with mathematics. Three emerging domains of mathematics education related to critical mathematics education are discussed in this manuscript: ethnomathematics, equity in mathematics education and culturally responsive teaching. All three of these domains share the purpose of creating just and democratic classrooms while they provide different means to reach this purpose. Ultimately, the goal of the critical mathematics education is to empower students with knowledge, skills and dispositions needed to create democratic communities embracing social justice in and outside of school.