For my absolute last research journal I felt it was fitting to link to this website (http://www.centerforpubliceducation.org/Main-Menu/Instruction/What-research-says-about-the-value-of-homework-At-a-glance). Why? Because it gives the research on the subject of homework. Which is what this is, homework. The very first point is that there is no strong link between homework and student achievement.
I'll let you read the rest, but my one thing to say about that is there is a very strong link between homework and student achievement. Meaning if you don't do the homework don't expect to achieve good grades.
Have a great winter -and-homeworkless- break :D