APRS recently ran an ad in the Daily Hamsphire Gazette showing a number of available positions in the Amherst elementary and regional schools, including teaching positions.
Here's the ARPS web site showing current employment opportunities.
http://www.arps.org/administration/human_resources_/employment_opportunities
Job postings for Amherst Regional Public Schools are maintained through SchoolSpring
(www.schoolspring.com)