If you have small children whose interest might be captured and expanded by a different point of view, I highly recommend taking a look at Flatland:A Romance of Many Dimensions. The PDF of the book and a recently lllustrated movie are available free online, with links provided below.
I think you may enjoy it as well. I have witnessed many kids’ minds piqued at the concepts introduced and have been rewarded by more than one parent thanking me for the recommendation.