Thought I would post this for all you homeschoolers out there. This is a global event. I cut the following paragraph from the About page of the web site:
Students play at home and at school against other students around the world in live games of mental arithmetic. Each game lasts for 60 seconds and students can play up to 100 games, earning points for their personal tally. Students can play beyond 100 games during the event, but points will only count to the World Maths Day Mathometer, not their personal point score. The students who answer the most questions correctly will appear on the Hall of Fame. There are 5 levels of play, 20 games on each level.
Once registered, your child/children can begin practicing right now. David was practicing last night with students from Australia and Portugal, which he thought was awesomely cool!