There is almost nothing about this Homeschool planner that cannot be modified or altered to suit your needs. You can even add more kids by printing pages 17-20 that are already in manual duplex once more per additional kid.
The document is in Office 2013, publisher to be exact. My operating system used to save the doc is Win10. It prints in manual duplex to save paper. Just print the document and it will tell you how to put the paper back through the tray to print the flip side.
The title and cover pages have color and have purposefully left the interior pages with minimal color to save on ink for those using a home printer. You can further save on ink by using your printer's own ink saver settings.