I was not too long ago asked by a neighbor to explain to them the method that my son's school used to keep the students organized.
The methods that are in place are used for all the students in the classroom.
In other words every child is treated as if they were disorganized which when you think about it is not too far from the truth.
This academic institution has discovered that organizational methods that assist students with ADHD, tend to not only help the inattentive and disorganized kids, these organizational tactics really assist everyone.
I think it is an intuitive fact that we all do better work if we are organized and we are all more on task if we have an easy and accessible way to:

• Break down the task that needs to be done.
  
• Determine the time frame that the tasks need to be performed in.
  
• Understand what is due and when

When all these factors are readily knowable then we are much better able to prioritize and to make a plan of action.
The system that this school utilizes is really very low-tech but it is effective of the method include:

• A planning student/teacher meeting
• A collapsible file
• A record of assignments
• A posted classroom sheet with a copy of the assignments and the Due date

This is how it functions.
Every Week the teachers have a short get together with the class where the weekly assignment list is distributed.
Materials that are important to each required assignment are carefully filed in the accordion file that has previously been labeled with subject headings such as: Reading, Writing, Math, etc.
The teachers have a discussion with the class about what the nature of each subject homework assignment is, what is required, how much time the instructor thinks it will take to thoroughly complete the task, what should be brought to school along with the required assignment (e.
g.
flash drive, art supplies, current event newspaper or internet article, etc) and the day that the assignment is due.
The students task list includes a description of the, homework assignment, an estimated length of time to accomplish, (they ask each student to adjust their individual time to completely finish the task by how close the instructor's reported average estimated time of completion differed from their actual completion times for previous assignment of the same kind.
For example if last week it took them 2 hours to complete their journal writing but the average length the instructor thought that it would take was just 30 minutes, then the child would scratch out the 30 minutes on the assignment sheet and write in 2 hours), and a due date.
Middle school and High school kids have a similar system except that each individual subject instructor gives them their required assignment and it is up to the child to write in this information onto their weekly list.
At home parents are requested to look at the required assignment list on Monday evening and make sure that the student has a plan and whatever support that they may desire to accomplish their weekly tasks.
This method has worked out wonderfully in our home.
This system does not require any hard understanding or hard to accomplish maneuvers and it can be started and put into place in one day.
There is another terrific process that is very similar to the method described above and that was invented by a woman who mothered four kids who had been diagnosed with Inattentive ADHD.
It is also a classroom and school organizer and planner and it is specifically designed with many of these same components.
If you do not figure that you will have the cooperation of the teachers needed to put the Inattentive ADHD classroom components in place that I have explained above then her PAC Planner would be a stupendous thing to buy.
The PAC planner is downloadable, costs about $25.
00, and can be returned if it does not accomplish the intended goal.