I believe that rubrics should always be provided to students at the beginning of a new assignment. Rubrics inform students of the expectations for their work which will help them through the entire learning process by allowing them to self-evaluate and monitor their own progress. Rubrics are written (or pictured) at the student’s own level making it a very useful tool. Rubrics work from the Kindergarten level all the way up (I still have them in graduate school for my Masters). In my classroom, we may have special rubrics that are created just to use with big projects but we will also have more generic rubrics. It can be challenging to think about rubrics at a very young level that would apply to a broad range of everyday assignments, check out Teachers Pay Teachers for some great ideas like the one pictured below:
References
Richardson, S. (2012). 4-Star Kindergarten Rubric. Retrieved September 27, 2017, from https://www.teacherspayteachers.com/Product/4-Star-Kindergarten-Rubric-322213