on-level public school education

[IQU3838]

Hi there,

I have a sentence which I don't understand, could anyone help me:

"The majority of kids who had an on-level public school education will be able to finish this grammar worksheets."

What is on-level in this sentence?

Thank you for your kind help.

[Tdol]

It doesn't read like a native speaker to me- it should be these grammar worksheets and kids seems a bit out of place in the sentence. I assume it means something like of a reasonable standard/satisfactory, but haven't come across the usage.