Here is a general schedule for the 2017-2018 school year. I start by blocking out the days we will take off for holidays, in red. Which leaves me with the following, in green, to work with as school days. As might notice this is more then the needed 180 days of school. I do this on purpose it allows us fluctuation throughout the year. This is just a basic schedule. We generally work on a weekly schedule with more detail. Every 6-9 weeks I evaluate the yearly schedule and then plan extra days off to narrow it down to 180 days by the end of the year. We also take 2-5 days off at the end of each quarter. We use that time to plan a small family vacation.
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What does your yearly schedule look like?