For detailed information about classes please click here. Weekday class $150.00 Drop-in Class $40.00 Travel-Teaching Workshops 2013 Weekend Workshop $200.00 4-day lntensive Workshop $200.00 Movement and Mechanisms in Metal Clay $200.00 Accreditation Program for Hadar’s Clay™ Teachers © Copyright 2012 Hadar Jacobson - All Rights Reserved Hadar's Clay™ is a trademark of Hadar Jacobson. The terms "bronze clay" and "copper clay" are used generically and do not denote any particular product or brand.