/teaching-learning/common-core-commentaries Adopted by 45 states and the District of Columbia, the Common Core State Standards have provoked opinions and ideas from thought leaders, policymakers, and the educators who have to implement them. Browse their perspectives in this collection en-US 2021 (c) °ÄÃÅÅܹ·ÂÛ̳ Thu, 31 Dec 2020 15:54:02 GMT