This training document outlines the apprenticeship training standards for the trade of patternmaker that have been approved by the Ontario Ministry of Skills Development. The document consists of the following: (1) skills (competencies) identified by a trade analysis development group of practicing patternmakers; (2) general performance objectives that summarize the related skills of a trade cluster in behavioral terms and that state the conditions and required performance criteria; and (3) specific performance objectives that describe the individual trade skills and that state detailed conditions and required performance criteria. Standards are provided for training units on the following: protecting oneself and others; planning and organizing the production of models, patterns, and coreboxes; creating master patterns, coreboxes, and coresticks; creating master models; producing plastic molds from a master pattern or model, working plastic foundry patterns from a master mold, master coreboxes from a corestick, a working integrally cast match plat or cope and drag set, a working split-mounted foundry pattern, and a fully machined metal corebox; and checking designs and using construction fixtures and gauges. A Developing a Curriculum (DACUM) competency chart is appended. (MN)