"How do I determine if a curriculum is high school material? My son is interested in learning Biblical Greek. I found a few great workbooks at Half-Price books, but they don't have any grade recommendations on them." ~ Charlotte on Facebook
You might be able to find good audio books on biblical greek free on your library website. I know my library has one, I just happened to come across it yesterday. Haven't listened to it yet so I don't know how good it is. But it might be a good supplemental tool for the a child trying to learn greek at home.
Parents need to keep the academic records for their teens after graduation . They may be needed for further education in 5 years.... or 10 years... or 30 years after the children