A charming children's book that creatively incorporates math concepts When an elderly carpenter takes a walk on a spring day, he soon hears the birds singing. The sounds remind him of a time long ago, when as a young boy he had listened happily to birdsong. The carpenter quickly gets to work on a surprise that delights him and the birdsand soon they are they are all singing together! Hands-on activities and elementary math concepts that relate to addition and multiplication are illuminated in this gentle story that celebrates nature as well as creativity.