No it’s not a book mark. But it is upcycled posterboard thanks in particular to Jeanna (who you should visit over at her WordPress blog.)
We used these expired posters from her place of employment with Legos to match, name colors and begin patterning skills.
Apparently a “Close Up” was in order 🙂
A lego zip line!! Science and Legos combined!
Check out one way to create it on http://www.attagirlsays.com/2013/10/17/rainy-day-kids-activities-lego-zipline/