TAGD-171: Descriptive Geometry: Lines and Planes

Business, Entrepreneurship, and Professional Development
Skilled Trade & Apprenticeship
Academic Level
Course Subject
TAE - Graphic Design
Course Number
Course Title
Descriptive Geometry: Lines and Planes
Credit Hours
Instructor Contact Hours Per Semester
32.00 (for 15-week classes)
Student Contact Hours Per Semester
32.00 (for 15-week classes)
Grading Method
TAGD-120 or TAE Apprentice Coordinator/Instructor Permission
Catalog Course Description

Covers basic descriptive geometry theory, and explores how to use orthographic principles to find true views of lines and planes.

Goals, Topics, and Objectives

Core Course Topics
  1. Lines, planes, notation, fold lines, and projection of points into space.
  2. True lengths of lines.
  3. Point view of a line, distance between a point and a line, and the perpendicular line principle.
  4. Intersecting and non-intersecting lines.
  5. Parallel and skewed (non-parallel) lines.
  6. Planes.
  7. Horizontal, frontal, and profile planes.
  8. Edge views of planes.
  9. Points and planes.
  10. True angles.
Core Course Learning Objectives (Separated)
  • Explain the concept of fold lines and reference planes for the purpose of creating auxiliary views.
  • Explain the technique of locating lines and points in space.*
  • Explain the three principle viewing directions as well as inclined and oblique views.
  • Solve actual shop problems using given techniques.*
  • Solve problems related to special relationships.*
  • Develop the ability to work efficiently and effectively in 3-dimensions using 2-dimensional representations.
  • Assessment and Requirements

    Assessment of Academic Achievement

    All students will be required to complete a comprehensive final examination that assesses the learning of all course objectives  This exam must be weighted in a manner so that the exam score is worth a minimum of fifteen percent of the final course grade.  This exam is to be a common exam administered to all sections of TAGD 171.

    General Course Requirements and Recommendations

    The student will be required to bring the drafting equipment used in previous  drafting courses.  Modeling clay is also required.


    Texts, handouts, and/or workbooks will be determined by the TAE Department.


    Approval Dates

    Effective Term
    Fall 2014
    ILT Approval Date
    AALC Approval Date
    Curriculum Committee Approval Date