The Polar Vortex is back, the weather is keeping everyone inside, and it’s possible you are being subjected to another day of “Mom/Dad, I’m bored!” The weekend ahead looms, cold and dreary for much of the US. If this sounds familiar, I have just the thing to keep your kiddos occupied – check out my list (Part 1) of some entertaining middle grade books – perfect for a snow day. (This roundup of some of my favorite books from 2018 contains affiliate links.) These books all share a general theme of overcoming obstacles of one sort or another. A few of them are laugh out loud funny while tackling topics…