One of the most common struggles parents face when homeschooling high schoolers is helping them learn how to manage their time and priorities effectively. It's a skill that will help them now and later in life.Teaching your child how to organize and manage his or her time is one of the most valuable skills you can teach. Not only will it help prepare them for college and work, but it will also give them a sense of security and control in knowing exactly what is expected each day.
It took a bit of trial and error but by the time my oldest daughter was in her "junior" year (I use the term loosely. I know you homeschool parents know what I mean, though), we finally found a system that worked for us. Based on what I created for my own children, I worked with a designer (because, no, I'm really not good at fancy graphic design) to make one for you and your high schooler.