For
It encourages mentorship and flexible learning speed.
Against
It complicates teaching and can slow down stronger students.
Anonymous excerpts, translated where noted.
“The kids learn so much from each other, often even more than they learn from me!”
“The amount of amazing development that happens for younger and older children when they are together, including with friendship and social skills, is noticeable.”
“The kids are on vastly different levels, and with behaviors, it makes it extra hard to teach anything”
“The main challenge is for the teacher, to give both grades an equal amount of attention.”