We have started using the Interdependence package and we are having a great time at it. My 10 year old daughter asks to do it just about every day, and I love how organized and easy to get into. We're not traditional homeschoolers, and tend to be very in-the-moment, but we have already pulled the books off the shelf several times when we're ready for "projects"! Also, it is so easy to use between different ages: my 10 year old and 5 year old want to be a part of each other's projects, and each one will get right into what we're doing. I don't have to do anything separate, as they both enjoy both curricullum!