Differentiated both students in need of additional support and those who can extend their learning in math.Project-based learning (PBL) using math circles:challenging problem or questionsustained inquiryauthenticityapplication of learningintegrationstudent voice and choiceA public product for an authentic audiencefeedback loops of critique, reflection and refining of the product - including formative and summative assessment.tiered instruction / strengths based / collaborative learning / differe