Remember many books stretched over a year or years being read 1 ch per week.
In our family, we schedule 1 ch (or chunk of pages) per day for Literature and 1 ch for History typically. So in a 12 wk term we read 33 ch of each. If the book’s chapters are very short, we read 2-3. I use the last week for exams and catchup. I use this same principle for 1-3 when I’m reading or for older kids who read on their own. Sometimes, we have more than one lit or history book at a time to equal more chapters read per term, but this is my baseline.
I like that chart, but remember its a tool. I don’t break chapters unless very long and many books we read daily instead of book 1 on Monday, book 2 on Wednesday, book 3 on Thursday, etc. I prefer reading book 1 daily followed by book 2, etc. I do usually have at least one book that we read 1 time per week, but not all of our books.
Does that help or muddy things? Btw, the SCM Books and Things Seminar addresses this more clearly, but I can’t pull that out at the moment.