Apple, symbol of Knowledge or Sex?

Western children used to give their teachers apple in school. Due to this culture, apple became a symbol of knowledge. That’s why Apple Computers chose this name.

But, in ancient Greece, Apple was the symbol of sex & virginity. Because, when you vertically slice an apple in half, you find the symbol of female organ. And they believed that apple is also good for sex health.

I wonder why would the children give their female teachers apples. Aren’t the teachers aware about the Greek culture?😀