My school uses JUMP Math and I fold it into a Kathie-Nunley-style Layered Curriculum Unit. This is a bundle of all my Grade 6 Chapter Sheets from all five strands (PDM, PA, NS, ME, and Geo). They are available separately as well. I use "Level 2, 3, and 4" instead of "C", "B", and "A" because our school uses Ontario's level-based marks instead of letter grades. The download file is in MSWord format, so you can change this back easily.
If you want to know about the activities listed on the sheets, feel free to contact me and I'm happy to share them. I draw on a wide variety of outside resources.