The purpose of this study was to identify and explore the challenges that new secondary teachers experienced in the implementation of the Common Core State Standards (CCSS). The challenges include lack of preparedness for teaching CCSS, needs for understanding the CCSS language, the content in the standards, student learning, and the lack of resources. New teachers also reported challenges in collaboration with veteran teachers. They suggested that a collaborative learning community help them implement CCSS effectively. The collaboration should involve collaborative activities through peers, among school administration and teachers, online collaboration, and training workshops.