This is not like what the gifted program my son was in 4-6th was like. His class had it's pro's and con's but they did do a lot of things to engage the kids in higher level thinking. Very little seat work was done in class. Class time was spent with the teacher teaching, the class discussing issues, working on group projects, and learning material that was outside the regular curriculum On the other hand there was a ton a homework, since so little seat work was done in class. And it turned out my son really struggled with group work, so the emphasis on that was a real struggle for him.

Good Luck figuring out something that will work. Do your girls have 504's? Any school accommodations?