Another very simple and effective tool to provide, to teach, yet the power of habit and the interference of self-perception often means that coachees struggle to fully deploy the Four Quadrants and learn from the data they collect about themselves. Practice will be required especially by those who are "too busy" - in fact as a coach you may have to help your coachee capture all the correct details by seating yourself near them if possible.
I first read about this tool in Stephen R Covey's The 7 Habits of Highly Effective People (UK) (or US) which provides a link to a PDF containing basically the steps below. I believe the tool is actually presented in First Things First (UK) (or US) co-authored by Stephen and A. Roger Merrill which I have not read yet.
Sheet of A4 and a pen
A day in the life of the coachee
Step 1: Help your coachee to create 4 quadrants on the piece of paper. Turn the paper lengthwise and draw a vertical line through the middle as well as a horizontal line also through the middle.
Step 2: Label Column 1: "Urgent" and Column 2: "Not Urgent"
Step 3: Label Row 1: "Important" and Row 2: "Unimportant"
Step 4: Pick a day in the life of the coachee where they will capture all the tasks and activities they engage in, on this matrix. A simple 1 worder should be sufficient.
As a coach with a very busy coachee, you might seat yourself nearby and create the same matrix for your coachee to compare with later.
Step 5: At the end of the day, the coachee should have approximately 30 words. Some might have as few as 5-10 (in which case your own observation version might be required, or simply more practice).
Step 6: Ask the coachee to guesstimate how much time was spent performing each of the tasks and activities noted.
Step 7: Now calculate the percentage of time spent in each of the quadrants
Step 8: Now label the top left quadrant as "I: Burned Out", the top right quadrant as "II: Change Agent", the bottom left quadrant as "III: Bored But Busy" and the bottom right quadrant as "IV: Fired"
You can use Rory Bowman's Public Domain picture to discuss the quadrants further: