Next Question please -
How long to complete one volume?  How long to complete the set of 10 readers and workbooks?

Question - How long to complete?

One volume - Reader alone:  Yes, you can just read the stories to your children.  You can start them very early in Latin by reading to them just as you do other fun things.  Read and point out silly words and things to giggle about.  Don't worry about your pronunciation, they won't know the difference.  (We are working on audio CDs)  They will ask for more.  How wonderful would that be?  If you just read the stories, you will of course finish much quicker than if you do the workbook too.  As with other fun books, the children will ask for you to "Read it again"  and "again".  So you might finish a reader in a week or two or three but reading it again will keep it alive for long after that.  Then when they are ready,, introduce them to the workbook and watch them fly through it.

One volume - Reader and workbook:
Every class is different (as well as each student).  The answer to this question will vary depending on how much time you wish to spend on a page in the reader.  Do you want to read a whole story at one sitting?  Or would you rather do one page in the reader and the corresponding page(s) in the workbook?  You might want to read the whole story all the way through both English and Latin.  Since we have changed some of the normal story line so that translation into Latin would be in simpler grammar, reading the English is encouraged so the children know what to expect in the Latin.
Most days we read between two and four pages in reader, then some work in the workbook.  But the next day we will read those pages again,  We'll take turns reading, take turns translating, and take turns acting things out.

We have taken different amounts of time for different stories.  Not because the stories are longer but because different months had us busier than others.  So for example, one story took us three months.  Then another one we finished in about 6 weeks.  I suggest you plan three months .  You may finish earlier.  At that rate, some volumes will take you six months but you will probably finish in less time than that.

The answer also differs if you have children who can work in the workbook by themselves.  Some of my children need more help so we take whatever time is needed.

The whole set of 10 volumes:  It stands to reason if you finish two of the volumes in a school year, you will likely complete the set of ten in five years.  However, you may find as you progress that you can finish the later volumes faster.  They are not easier but as you and your children understand how the system works, I think you will find them moving along more quickly in subsequent titles.

Have fun, move at your own pace.  And please let me know how it is going for you and your family.  It is a delight to my heart to hear from you.
m.e.