Back-to-school tech gadgets 2009

Julie Balise, Boston.com Correspondent

Building Block Calculator

Architect meets addition with the Building Block Calculator by Pylones. The $27 devices -- available in red, black, blue and green -- will be available in September.

Building Block Calculator Architect meets addition with the Building Block Calculator by Pylones. The $27 devices -- available in red, black, blue and green -- will be available in September.
Pylones