I learned that our district is adopting Common Core for math next year. I'm a little concerned reading this thread that it is just the latest trend. I recall 5-6 years ago that everyone was switching to Investigations and Everyday Math. Now, "poof" those are out and CC is in. Don't get me wrong, I won't be sad to say good-bye to Investigations. I'm just worried that this is another stab in the dark with my kids as guinea pigs.