a great many grades? What does that mean?
This does not necessitate writing elaborate essay plans, but you must think about what exactly a specific question is getting at and how it can best be answered. A little more thinking and a little less writing would improve a great many grades.

a great many grades?
What does that mean?

Please help me!
Thanks!

Question

a great many grades? What does that mean?
This does not necessitate writing elaborate essay plans, but you must think about what exactly a specific question is getting at and how it can best be answered. A little more thinking and a little less writing would improve a great many grades.

a great many grades?
What does that mean?

Please help me!
Thanks!

Answer

"a great many grades" is amplifying "many grades".  In other words, "not just many grades but many, many grades would be improved by a little more thinking and a little less writing."

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