Course Description

This introductory course to shop math and blueprint reading builds skills for shop employees, purchasing department personnel, and beginning inspectors to identify the symbology and measurements of quality parts.


This course is geared toward inspectors, machinists, technicians, assemblers, purchasing agents, and others involved in product quality and inspection to improve their understanding of blueprints and communications with customers and coworkers.



Topics and Course Content


  • Terms, Standard Abbreviations and the Alphabet of Lines
  • Dimensioning Systems
  • Orthographic Projections
  • Reading Multi-view Drawings
  • Blueprint Details – Reference, Basic, Chamfers, Counter-bores and Countersinks, Finish Symbols and Allowances, Fillets and Rounds, Bosses, Slotted Holes, Tapers, Necks, Heat-treatment and Finishes
  • Sectional Views
  • Thread Specifications
  • Metric Drawings
  • Welding Symbols (optional)


  • Arithmetic – Fractions, Decimals, Tolerances, Signed Numbers, Powers and Roots
  • Metrics
  • Algebra – Formulas, Statistics
  • Geometry – Angles and Lines
  • Trigonometry – Right Triangle Applications

Learning Goals and Results

By the end of the course, the participants will be able to:

  • Identify and demonstrate correct interpretation of blueprints
  • Identify conventional line symbols
  • Correctly demonstrate the ANSI concepts of contour dimensioning and geometric breakdown for giving size and location of various features\
  • Identify the features and parts of dimension information
  • Distinguish between size and location dimensions
  • Read technical drawings at any specified scale
  • Interpret and read any or all of the six standard orthographic views using conventional practices
  • Correctly transfer height, width, and depth distances between views
  • Identify and correctly display hidden, center, and visible lines in all views

Time Investment

This class is 60 hours of classroom time taken in 4-hour sessions over the course of 15 consecutive weeks.

Please Note: Course content and time investment can also be customized to an individual company’s needs.

Employee Application Employer Application