Both my kids are home from school today. They have slight fevers and coughs but they're really feeling fine. They go to an alternative Reggio Emilia based school that's a compromise between me and their dad (we're divorced). If it were up to me we would be crazy unschoolers, but "traditional" schooling was important to dad. So, we met in the middle. But, days like today make me really, really wish we could unschool!
The kids built a downhill lego-traintrack. They observed that lego trains with more blocks were heavier and went faster down the ramp. We discussed possible reasons for this. We used youtube to watch videos geared to kids about inertia, mass and acceleration.
Discovered that it took greater force to stop the heavier train than the light train due to the principle of inertia and that's why it seemed to move faster. It wasn't as easily slowed by bumps in the track.
Then we watched a youtube video of rollercoasters that illustrated all these points for us.
Annnnnd this is what my house would look like everyday if we unschooled. Did I mention I'm still wearing PJ's and the kids are running around in undies?