Braille

The emergency instruction card on the MARC train from Baltimore to Washington D.C. (which Aidyn licked) was printed with braille.  Aidyn asked what the bumps were and I explained that they were braille and helped blind people be able to read.  I love how quietly she sits and soaks in new information!  Her ability to retain is also wonderful because on the return trip she picked up the instruction card again (and did not lick it this time) and proclaimed, "Braille helps people who can't see read!"