McGraw-Hill Education (MHE) is a learning science company and one of the "big three" educational publishers[2][3] that provides customized educational content, software, and services for pre-K through postgraduate education. The company also provides reference and trade publications for the medical, business, and engineering professions. McGraw-Hill Education currently operates in 28 countries, has more than 5,000 employees globally, and offers products and services to over 135 countries in 60 plus languages. Formerly a division of The McGraw-Hill Companies, now S&P Global, McGraw-Hill Education was divested from McGraw Hill Financial and acquired by Apollo Global Management in March 2013 for $2.4 billion in cash.[4][5][6][7][8] Based on the growing demand for classroom technology, McGraw-Hill Education has transitioned from a print-based business model to one based on delivering digital content and technology-enabled learning solutions.[9] This shift has accelerated in recent years with an increased focus on developing adaptive learning systems that enable classroom teaching to come closer to a one-to-one student-teacher interaction. These systems allow personalized learning by assessing each student's skill level and using data to determine how each can progress through lessons most effectively. McGraw-Hill Education provides digital products and services to over 11 million users. In 2013, the company acquired the ALEKS Corporation[10] and after acquiring 20 percent equity stake in Area9 ApS went on to acquire the company, its development partner on the LearnSmart Advantage suite.[11] In 2015 MHE opened a new R&D office in Boston’s innovation district.[12][13] In September 2016 the company acquired adaptive learning technology and content provider Redbird Learning. [14] The company currently offers over 1,500 adaptive products in higher education and digital formats for its major K-12 programs.