Mountain Math
We've been using the Mountain Math for about 4 years now. We loved it so much we convinced our principal that the entire school needed to be doing it. We looked at Mountain Language and 2nd was lower than our standards and 3rd was beyond what second graders are expected. We didn't order it, but I think it would have been good to get the 3rd and do those things which we think would have been appropriate for our students. Have you tried Target the Question? It's a word problem/problem solving system. This is the first year we've used it and I love it. You have a problem scenario for the week and each day of the week (Mon-Fri) there's a difference question to answer about the story.