Ask HN: Innovative way to help education?

So, I was just thinking about this. It's not-at-all tech-related, but I'm just curious why I never read about it or if it's even been explored at all.

My idea to better education, specifically for middle and high school is this: make EVERYONE'S grades somewhat dependent on the lowest grade in the class.

This will help the annoying slackers get their act together since they're not sinking alone. They're drowning everyone along with them.

This will hopefully also help everyone come together to help the person with the lowest grade. However, I'm sure it could lead to massive amounts of resentment if the experiment isn't managed well.

Anyway, I have no idea if this is a usual HN thing, but I read HN religiously and I value the input from its members.

Thanks.