Even the most reluctant connector in your class will connect to this - cause believe me, every kid (at least the ones who have even slightly cold winters) has lost a mitten. Plus, it's a sweet story. Here are some other great winter/snow connect books.
I started this week with just connecting to a picture. My kids drew the picture from the story that reminded them of something in their life, also a picture. They were also encouraged to connect to a character or to something that happened in the story. From there we moved on to more writing about the connection and it went well. You can peek at it below.
If you want to try any of this, you can download the connect sheets I used here
Hope that helps you a bit.