Buy the Class Rules! 15.75" x 11.75" First Day & Last Day of School Chalkboard by B2C™ at Michaels. Get ready for the new school year by decorating your desk with school themed décor and classroom supplies. This chalkboard is designed for you to write details of your first day at school and last day of school so you can compare and reflect on the year as you move up to the next grade.