frustration has flared up over the Common Core initiative, involving the implementation of national reading and maths standards for primary and secondary school children. The Gates Foundation played a central role in bringing the standards to fruition. Spending over $233 million to back the standards, the foundation dispersed money liberally to both conservative and progressive interest groups. The two major teachers' unions, the National Education Association and the American Federation of Teachers, each received large donations, as did the US Chamber of Commerce. Gates himself suggested that a benefit of the standards is that they open avenues towards increasing digital learning. In 2014, Microsoft announced it was partnering with Pearson to load Pearson's Common Core classroom material onto Microsoft's Surface tablet. Previously, the iPad was the classroom frontrunner; the Pearson partnership helps to make Microsoft more competitive.