Please see the letter from Big Ideas Learning and Houghton Mifflin Harcourt below. While the relationship between Big Ideas Learning and Houghton Mifflin Harcourt is coming to a close, Big Ideas Learning will continue to publish and support the Big Ideas Math programs, and is fully committed to fulfilling the needs of its customers. Big Ideas Learning has secured a long-term agreement with a new distribution partner, and will share additional details about this partnership in June of 2017. Big Ideas Learning appreciates your continued trust and support during this transition. Please email, firstname.lastname@example.org, or call, 877-552-7766, if you have any questions or concerns.