This is an excellent idea! I found it on the "Oh Boy Fourth Grade" blog! There are free printables on the site; it includes asking a child's strengths and weaknesses and even asks if there are holidays the family doesn't celebrate. Would be a super helpful aid in the classroom!
This blog post is full of amazing ideas for how to prepare for Open House night and get a head start on learning about your students! I especially love the idea of an "About the Teacher" page and a page letting parents know all of the awesome things their children will be learning that year.