This document contains materials about and from a workshop that was conducted to help Ohio horticulture teachers learn to document student competence through effective performance assessments. The document begins with background information about the workshop and a list of workshop objectives. Presented next is a key to the 40 performance assessments that are included. A blank performance assessment form is provided for use in developing assessments for competencies not included in the document. A performance critique is provided to assist teachers in evaluating existing and newly developed performance assessments. The remainder of the document consists of the 40 performance assessments, which were developed by Ohio horticulture teachers and which contain the following components: Ohio Competency Analysis Profiles (OCAP) program name; unit number and title; competencies addressed by the performance assessment; terminal performance objective (outcome); competency builders/pupil performance objectives (criteria); list of applied academics competencies; list of equipment, supplies, and other resources to be provided; and list of preparations before the assessment starts. The following are among the agriscience and horticulture topics for which performance assessments are included: marketing and sales; floral design; greenhouse plant production; turf and landscape operations; nursery and garden operations; and soils. (MN)