Bumping this up because it seems our school district is adopting "Bridges in Mathematics" as their elementary math curriculum starting next year. Almost everything I've been able to find about it was posted prior to 2010 and is negative, which is concerning. I've read that it's very visually-based and doesn't provide concrete formulas. But, I'm also assuming that the current CC version may be updated from older versions...

I'd love to hear about any recent experiences.