Teaching Solar Guide

Our friends at the [Solar Schoolhouse](http://solarschoolhouse.org/) have one of the best books we have ever seen about teaching solar. If [WindWise](https://www.kidwind.org/activities/windwise) is the greatest wind curriculum ever, this is surely the best solar one! Lots of good ideas for the [Solar KidWind Challenge](https://www.kidwind.org/activities/solar-structure).