Twitter co-founder Jack Dorsey surprised teachers across Missouri on Thursday by fully funding all of the classroom and school projects they had registered on the DonorsChoose.org website.There were about 600 of them.They include Chromebooks for the debate team at Clyde C. Miller Career Academy in St. Louis to use for research during competitions. Butterfly kits will be going to Cool Valley Elementary School in the Ferguson-Florissant School District so third-graders can raise butterflies and learn about pollination. And basic school supplies such as crayons and scissors will be going to Woerner Elementary in St. Louis, where most students come from poverty.Read the full story on St. Louis Post Dispatch.