The Problems of the Month are designed to be used schoolwide to promote a problem-solving theme at your school. The problem is divided into five levels, Level A through Level E, to allow access and scaffolding for the students into different aspects of the problem and to stretch students to go deeper into mathematical complexity.
HUGE collection of CCSS resources including "unpacking the standards" docs for each grade level which clearly show expectations for what students should know and be able to do, how CCSS align with College & Career Readiness goals, etc.
Comprehensive collection of math vocabulary resources includes CCSS aligned math vocabulary word lists (left side). Don't miss the great activities and websites to build vocabulary skills (right side)
National Council for Teachers of Mathematics provides free activities resources on their site that can be sorted by grade level from elementary through HS