In my Montessori class, my students regularly use planners to keep track of their work completed, assignements, spellling and goal setting. One year, I could not get reimbursed for the cost of 5 dollars per planner so with a little help, I had my own created.
This planner includes a place for each child's name to work on their goal for the week (I like helping children use the possessive apostrophe), a place for weekly spelling words, the days of the week in Spanish and English and a message board for other announcements.
You can print it up a month at a time for each student(the margins are designed to have them mirror each other and can either be hole punched or stapled) or bound with plastic binding combs for a whole year of planning. When copying, arrange originals carefully so you can print it double-sided in book format. I use one for myself to model for young children how to fill in the dates and other whole class work we are doing.