Maricopa Community Colleges  ABC114   19936-20046 
Official Course Description: MCCCD Approval: 05/25/93
ABC114 19936-20046 LEC 0.50 Credit(s) 0.50 Period(s)
Basic Sheet Metal Trade Math
Mathematical processes for the sheet metal trade. Problems involving use of protractors, vernier calipers, and micrometers for determining tolerances, seam allowances, blank sizes, and stretchouts. Interpretation of mathematical symbols. Prerequisites: (Indentured status with Associated Builders and Contractors Inc., and satisfactory test score on math portion of ASSET test) or permission of the apprenticeship coordinator.
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MCCCD Official Course Competencies:
 
ABC114   19936-20046 Basic Sheet Metal Trade Math
1. State the importance and uses of mathematical skills to the sheet metal worker. (I)
2. Perform calculations for circumference, length of arcs, area, volume, ratio and proportions, and equations. (II a-f)
3. Explain the use of the steel square for solving field layout problems. (II e)
4. Explain the purpose and procedure for using a protractor, micrometer, and vernier caliper. ((II h)
5. Solve problems involving tolerances, seam allowances, blank sizes, and stretchout. (II i)
6. Interpret mathematical symbols. (III)
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MCCCD Official Course Outline:
 
ABC114   19936-20046 Basic Sheet Metal Trade Math
    I. Math for sheet metal trade
        A. Importance uses
        B. Typical problems
      II. Calculations
          A. Converting English to metric measurements
          B. Arcs
            1. Circumferences
            2. Length
            3. Formulas
          C. Area measurement
            1. Importance
            2. Use
            3. Formulas
          D. Volume measurement
            1. Trade need
            2. Formulas
          E. Steel square
            1. Calculating right angles
            2. Uses
          F. Equations
          G. Ratio and Proportions
            1. Definitions and rule
            2. Trade use
          H. Use of mathematical tools
            1. Protractor
            2. Micrometer
            3. Vernier caliper
          I. Problems
            1. Tolerances
            2. Seam allowance
            3. Blank sizes
            4. Stretchout
        III. Mathematical symbols
            A. Grouping
            B. Operational
              1. Description
              2. Sequence
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