The "Problem of the Day" is probably one of my favorite routines for the classroom! I ended up starting this routine as prep work for the story problems that are on the Kindergarten IOWA test... and my kids just love it!
I know a lot of teachers do math journals with their kids, which is somewhat similar. I have thought about doing those, but unfortunately the IOWA Test doesn't allow for students to use scrap paper to solve their math problems, so I use my problem of the day to focus on counting with our fingers.
This routine is aligned to CCS:K.OA.1 and CCS:K.OA.2.
Read more about this routine here: