Our son recently brought home a "free time" paper from first grade that was all about the video from A Capella Science.

He has amazing recall.

We played that YouTube again for him last night and then for our family "movie night" we played, Back to the Future with Michael J. Fox. (I wasn't thrilled with the language in this, but DS was seemingly oblivious.)

Today he made his own time machine out of Legos. smile