The Clack County Composter Recycler program is offering free, hands-on instruction about composting from 10 to 11:30 a.m. April 3 at the compost demonstration site at the Center for Agriculture, Science and Environmental Education, 11104 N.E. 149th St., Brush Prairie. Learn more and register at clarkcountycomposts.org/classes-and-workshops/current-offerings/859-casee-work-party-30.