My units are designed for 5th-8th grade students.
I have only taught this with 5th graders. Depending on your class, you may be able to modify it for a lower or higher grade. However, the texts are definitely written at a middle school level. Please read the unit descriptions and reviews before purchasing.
The articles in these units are written at a 7th-8th grade reading level. If you teach one of those grades, your students will be able to complete the activities more or less independently.
If you teach 5th or 6th grade, I recommend reading and analyzing the articles with your students. They will do great!