Placement in DITHOR depends on previous reading instruction, as well as on reading and writing ability. It depends on if your dc have had formal literature study within genres (i.e. nonfiction, fantasy, adventure, mystery, historical fiction, biography, etc.). It also depends on if they have had formal literature study within story elements (i.e. plot, theme, character, setting, rising action, etc.). Likewise, it depends on what reading level they are reading. Finally, it depends on how much they are used to writing.
So, for example, for 5th grade dc who are new to DITHOR and have had ample formal literature study of genres and story elements, and who are reading at or above grade level, and who are used to writing each day or at least several times a week in regard to reading instruction, DITHOR 4/5 with either 4/5 or 5/6 Level Book Pack books would work well.
But, for 4th grade students who fit the above description, and who have not done DITHOR before, we'd probably recommend doing DITHOR 2/3 Student Book with 4/5 Book Pack books, as getting a baseline would be good.
For 6th grade students new to DITHOR, we'd probably recommend DITHOR 4/5, but with high level book packs (i.e 5/6 Book Pack or 6/7 Book Pack). Unless the 6th grader has a strong background in formal literature study and is a strong reader - then, we'd probably recommend DITHOR 6/7/8 with 6/7 Book Pack.
For 7th/8th grade students, we'd probably recommend DITHOR 6/7/8, as it is necessary prep for high school.
The level of book packs you choose does not need to match the level of DITHOR Teacher's Guide Instruction/Workbook Level. So, for a strong reader that is a weaker writer, we'd place them in a lower level DITHOR Student Book and a higher level DITHOR Book Pack.
We have enjoyed using DITHOR for many, many years, and it is amazing! HTH - but ask more questions as needed!
In Christ,
Julie