I have used this system for years. I have adapted it as I've taught various grade levels, but this is the final product. It may suit your needs, or you may use the idea to develop your own. I would use this from Grade 3 to Grade 6 and I have included ideas for implementation.
This system takes almost no time at all once you are organised. You need a system behind the system, so spending the time in the first few weeks of the year pays dividends. You will want to know what your students already know and who needs extra support.
If you don't already have screening tests for the basic skill areas I have included assessments for literacy in my LITERACY SKILLS HANDBOOK and in my various MATHS programs. Some are whole-class screeners, but they also identify the students who need more individual assessment.
The Homework Mate differentiates. That's the beauty of it. When I had a class from 5 year olds to 12 year olds, I knew what I was previously doing wouldn't work. Time was precious, so this system was born.
Don't give all your students a commercial homework program, because I haven't seen one yet that did what homework is supposed to do - consolidate skills and become habit-forming.