As we prepare the 21st Century Students for the 21st Century workforce, we need to arm them with the ability to problem solve and think critically. Project Based Learning is one method for improving critical thinking skills in our students. PBL prepares students for the problem solving activities the 21st Century workplace will demand. This course will examine PBL methods for a Mathematics Classroom. Teachers will focus on best practices related to PBL and how to increase critical thinking skills and performance. This course is appropriate for all K-12 teachers. Participants will work with resources that focus specifically on using PBL with students with disabilities and multi-language learners.