"Developed by Maryland Public Television in partnership with The Math Forum at Drexel University and the International Society for Technology in Education, Mathlanding is a new website to support elementary math instruction."
High School math teacher blog. A really worthwhile read for all math teachers, especially secondary! Teacher Dan Meyer takes on/challenges/addresses many classroom math content issues. Offers and critiques ideas.
"A large majority of middle school math teachers say the common core is more rigorous than their state's prior mathematics standards. At the same time, most teachers reported receiving fewer than 20 hours of professional development over the past year related to the common core, according to the new study."
"Girls should play more video games. That's one of the unexpected lessons [author] takes away from a rash of recent studies on the importance of-and the malleability of-spatial skills."