The K-12 Common Core State Standards (CCSS) in mathematics and English Language Arts were developed through a state-led process managed by the National Governors Association (NGA) and the Council of Chief State School Officers (CCSSO). Achieve partnered with NGA and CCSSO on the Initiative. The CCSS for high school mathematics are organized by conceptual category (number and quantity, algebra, functions, geometry, modeling and probability and statistics). This was done purposefully, to allow states and districts maximum flexibility in deciding how best to organize their high school courses while still ensuring that all students have access to a mathematics course sequence that will culminate in being fully prepared in mathematics for college and careers. Still, the task of organizing standards into possible courses is a daunting one and during the development of the standards many states and districts expressed an interest in seeing models about how this task could be accomplished. To meet that need, Achieve (in partnership with the CCSS mathematics writing team) convened a group of experts to develop Model Course Pathways in Mathematics based on the Common Core State Standards.
Four model course pathways were created, each of which is intended to significantly increase the coherence of high school mathematics courses:
In considering the pathways, there are several things important to note:
The Model Course Pathways in Mathematics are published as Appendix A  to the CCSS.