From Washington Post:

As part of Computer Science Education Week (December 9-15), over 15 million students from 170 countries participated in “Hour of Code,” a nationwide campaign supported by President Obama and featuring free tutorials by Mark Zuckerberg and Bill Gates designed to get students interested in computer science. Students in kindergarten through 12th grade accessed lessons on, participated in sessions hosted by their schools, logged on at home, and attended events hosted at Apple and Microsoft retail stores. In addition to large participation in “Hour of Code,” Computer Science Education Week also saw efforts to increase math and science high school graduation requirements in Wisconsin and Alabama.