What is your understanding of Common Core (CC)? It’s a marketing catch phrase for some, a political handle for others. Many have read the CC Website, know the key ideas and have perhaps reviewed some of the standards, but what does CC mean for the day-to-day learning of US school students? Has much really changed? What are the lessons for schools?  Is Common Core driving real reform and more effective learning, or is it often more a case of re-jigging…