For 1st grade EDM students are required to fill out a classroom calendar. Hugely beneficial! I've had my students save their entire school year's worth and then at the end the year I bind each students into their own calendar diary. This way they can look back at all the important things they did throughout the school year and then on the back of each month, to wrap up each month, the students are encouraged to draw & write what their most memorable event for that month was. So all in all, a wonderful keepsake.