We failed in public education by splitting up the grades

Max adding black holes to a solar system

So if you want to succeed you have to take advantage of weird opportunities. For example: Universe Sandbox is 30 bucks - even if you only play it for an hour with your kids, tell me that's not worth it?

(http://universesandbox.com/) This is available for every platform, but I installed it on the Steam Machine in the living room so everyone could get involved. This is a key part of my learning strategy: While the 5yo cannot manipulate or understand the science, and the 4yo definitely cannot, they can both watch the 9yo get excited about smashing a moon into a planet.

And ideally, later on, they'll intuitively understand Space.

So much of what we've failed at in school is splitting up the grades.