My kindergartner is autistic, and has trouble understanding the concept of time, as in today / tomorrow / next week, etc. We review the week's calendar every morning ("here is what we will do today") and every evening ("here is what we did today"). I think the visualization with the stickers and the repetition is helping her understand. She is starting to know that we have school on Monday through Friday, speech therapy on Thursday, etc. I do wish the stickers were a bit more customizable to cover more things that we do, but this is definitely a great start.