For several years George has been working and researching in grades 1-10 classrooms in Canada, and in Brazil, integrating computer programming within mathematics education. He has also worked with the Ministry of Education in Ontario, Canada, doing background research for reforming curricula and advising curriculum writing teams. They now have in Ontario explicit computer programming expectations within the algebra strand for all grades 1-9. This has affected what mathematics is taught, how it is learned, and who can learn it.