This is one of my favorite things about my classroom! As a music teacher, I always have to be aware of when my classes are to be leaving and arriving.
I have these arrows pointing at the space on my clock that corresponds with a class leaving - for example, my 5th graders leave at 1:20. There is a blue arrow that says 5th grade - 1:20 pointing at the ":20" section of the clock. That way, I can just look at the hands of the clock and easily see how many precious minutes I have left.
I also have them color coded to match my grading folders and textbooks (5th grade has a blue textbook and grading folder).
These are EDITABLE so you can add your own times and events easily. You could also make them black and white. Simply choose the shape, click format, and find the place where you change the shape fill - from there you can choose any color or pattern! You can also copy and paste the entire shape to add more arrows to your collection.
Thanks for checking these out!