This lesson plan outlines instruction for a module on industrial blueprint reading. Over 30 hours of instruction are devoted to helping students learn to read, understand, and interpret blueprints used in manufacturing and construction. Students will learn key concepts like basic math, measurement systems, identifying lines and views, interpreting dimensions, weld symbols, and more. Assessment includes homework, tests, exams, and the ability to read and interpret blueprints for various applications. The plan details learning objectives, instructional methods, assignments, and materials needed.

1. Lesson Plan
Course Number and Title: WDT 110 – Industrial Blueprint Reading
Module/Unit: Module A – Industrial Blueprint Reading Fundamentals
Module/Unit Description: This module provides students with the opportunity to build the knowledge, and skills required for reading,
understanding and interpreting various blueprint reading applications, for the manufacturing and construction industries. Emphasis is placed a
student building their knowledge and skills in math, interpreting lines, views, dimensions, weld joint configurations and weld symbols, for various
industrial blueprint reading applications. Upon completion, a student should be able to read and interpret blueprints for various fabrication
applications, in the manufacturing and construction industries.
Estimated Time Required/Hours of Instruction: 30 hrs.
Professional Competencies/Performance Objectives:
A1.1 Basic math concepts for welding applications (measured cognitively)
A1.2 Metric system concepts for welding applications and American Standard measurements conversion to metrics (measured
cognitively)
A1.3 Various measurement tools and application concepts used in welding fabrication (measured cognitively)
A1.4 Identify the basic lines of a blueprint (measured cognitively)
A1.5 Identify and explain notes and bill of material (measured cognitively)
A1.6 Interpret basic views (measured cognitively)
A1.7 Interpret section views (measured cognitively)
A1.8 Identify types of blueprints (measured cognitively)
A1.9 Identify basic types of joints (measured cognitively)
A1.10 Interpret welding symbols (measured cognitively)
A1.11 Interpret fillet weld symbol (measured cognitively)
A1.12 Interpret groove weld symbol (measured cognitively)
A1.13 Identify Back or Backing and Melt-Thru weld symbols (measured cognitively)

2. Instructional Methods/Techniques: (Mark Appropriate Boxes with an X)
X
X
X
X
Lecture (Illustrated talk)
Lecture/Discussion
Demonstration of Concept or Principle
Demonstration of Manipulative Skill
Case Studies
Brainstorming/Buzz Group
X
X
Resource Person(s)
Supervised Study
Individual Research
Homework
Simulation
Project Method
X
X
X
X
X
PowerPoint Presentation
Computer Presentation
Small Group Activities
Hands-On Assignments
Problem-Solving
Other (Identify)

3. Learning Objectives
What will the Student will be able to do
after your instruction?
A1.1.1 Add, subtract, multiply and
divide whole numbers
A1.1.2 Add, subtract, multiply and
divided fractions
A1.1.3 Add, subtract, multiply and
divide decimals
A1.1.4 Convert fractions to decimals
and decimals to fractions
A1.2.1 Apply the metric system
A1.2.2 Apply the conversion of
American Standard
measurement to metric
measurements
A1.2.3 Apply the conversion of
metric measurement to
American Standard
measurements
A1.3.1 Fundamentals of reading tape
measures used for welding
fabrication
A1.3.2 Fundamentals and
application of squares used in
welding fabrication
A1.3.3 Fundamentals and
application of protractors used
for welding fabrication
A1.4.1 Identify object lines
A1.4.2 Identify hidden lines
Instructional Outline and Related Activities/Instructional Notes
Include both teacher center and student centered activities in a detailed
outline.
Math Applications for Welding Fabrication
 Math applications for whole numbers

Math applications for fractions

Math applications for decimals

Evaluation/Performance
Assessment
How will you determine if
learning has taken place?
Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Conversions of fractions to decimals and decimals to fractions
Metric Measurements Applications for Welding Fabrication
 Application of the metric system
 Conversions of American Standard measurements to metric
measurements

Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Conversions of metric measurements to American Standard
measurements
Measurement Tools Used for Welding Fabrication Applications
 Fundamentals of reading tape measures for welding fabrication

Fundamentals and application of using squares for welding
fabrication

Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Fundamentals and application of using protractors for welding
fabrication
Identification Basic Lines of Blueprints
 Object line identification for welding fabrication blueprint
applications
Written homework
assignments, chapter
test, comprehensive
midterm exam and

4. 
A1.4.3 Identify center lines

A1.4.4 Identify extension and
dimension lines

A1.4.5 Identify leader lines

A1.4.6 Identify cutting plane lines

A1.4.7 Identify section lines

A1.4.8 Identify short and long break
lines
A1.4.9 Identify phantom lines

A1.5.1 Identify and explain notes and
the bill of materials for
welding fabrication blueprint
applications
A1.6.1 Draw and interpret oblique
drawings
A1.6.2 Draw and interpret isometric
drawings
A1.6.3 Draw and interpret
orthographic drawings
A1.6.4 Interpret auxiliary views
A1.6.5 Interpret enlarged detail
drawings
A1.7.1 Interpret full sections
A1.7.2 Interpret half sections
A1.7.3 Interpret revolved sections
A1.7.4 Interpret assembly sections

Hidden line identification for welding fabrication blueprint
applications
Center line identification for welding fabrication blueprint
applications
Extension and dimension line identification for welding fabrication
blueprint applications
Leader line identification for welding fabrication blueprint
applications
Cutting plane line identification for welding fabrication blueprint
applications
Section line identification for welding fabrication blueprint
applications
Short and long break line identification for welding fabrication
applications
Phantom line identification for welding fabrication blueprint
applications
Identification and Explanation of Notes and the Bill of Materials Blueprint
Applications
 Identification and explanation of notes and bill of materials for
welding fabrication blueprint applications
Draw and Interpret Basic Pictorial Drawings and Views
 Draw and interpret Oblique drawings of welding fabrications

Draw and interpret Isometric drawings of welding fabrications



Draw and interpret Orthographic drawings of welding fabrications
Interpret Auxiliary views of welding fabrications
Interpret Enlarged detail drawings of welding fabrications
Interpretation of Section Views of Welding Fabrication Blueprints
 Interpretation of full sections views of welding fabrication blueprints
 Interpretation of half sections views of welding fabrication
blueprints
 Interpretation of revolved sections views of welding fabrication
blueprints
 Interpretation of assembly sections views of welding fabrication
blueprints
comprehensive final
exam.
Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.

5. A1.7.5 Interpret aligned sections

A1.7.6 Interpret broken-out sections

A1.8.1 Identify detail fabrication
blueprints
A1.8.2 Identify assembly fabrication
blueprints
A1.8.3 Identify subassembly
fabrication blueprints
A1.9.1 Identify Tee joint
A1.9.2 Identify Lap joint
A1.9.3 Identify Edge joint
A1.9.4 Identify Butt joint
A1.9.5 Identify Corner joint
A1.9.6 Identify Flanged corner
A1.9.7 Identify Flanged butt
A1.10.1 Interpret location of elements
A1.10.2 Interpret arrow significance
A1.10.3 Interpret obsolete weld
symbols
A1.10.4 Interpret preferred symbols
A1.10.5 Interpret contour and finish
symbols
A1.10.6 Interpret multiple weld
symbols
A1.10.7 Interpret designation of
member to be beveled
symbols
A1.10.8 Interpret dimensions on
welding symbols
A1.10.9 Interpret duplicate welds
identification
A1.10.10 Interpret multiple reference
lines identification
A1.10.11 Interpret welding
abbreviations identification
Interpretation of aligned sections views of welding fabrication
blueprints
Interpretation of broken-out sections views of welding fabrication
blueprints
Identification of Types of Blueprints
 Identification of detail fabrication blueprints

Identification of assembly fabrication blueprints

Identification of subassembly fabrication blueprints
Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Identification of y basic types of joints
 Identification of tee joint
 Identification of lap joint
 Identification of edge joint
 Identification of butt joint
 Identification of corner joint
 Identification of flanged corner joint
 Identification of flanged butt joint
Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Interpretation of Welding Symbols Used for Fabrication
 Interpretation of location of elements
Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.


Interpretation of arrow significance
Interpretation of obsolete weld symbols


Interpretation of preferred symbols
Interpretation of contour and finish symbols

Interpretation of Multiple weld symbols

Interpretation of designation of member to be beveled

Interpretation of dimensions on welding symbols

Interpretation of duplicate welds

Interpretation of multiple reference lines

6. 
A1.11.1 Interpret size of the legs
A1.11.2 Interpret length of the weld
A1.11.3 Interpret pitch and
intermitted welding
A1.11.4 Interpret contour and
finishing symbols
A1.11.5 Interpret combining fillet
weld with other symbols
A1.12.1 Interpret depth of groove
preparation
A1.12.2 Interpret groove weld size
A1.12.3 Interpret root opening
A1.12.4 Interpret groove angle
A1.12.5 Interpret contour and
finishing symbols
A1.12.6 Interpret groove weld
combination
A1.12.7 Interpret back gouging
A1.12.8 Interpret backing and spacer
material symbols
A1.12.9 Interpret consumable inserts
A1.13.1 Identify size of backing and
melt-thru weld symbols
A1.13.2 Identify contour and finishing
symbols
A1.13.3 Identify applications of back
or backing symbols
A1.13.4 Identify applications of meltthru symbols
Interpretation of welding abbreviations
Interpret fillet weld symbol
 Interpretation of size of the legs
 Interpretation of length of the weld
 Interpretation of pitch and intermitted welding

Interpretation of contour and finishing

Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Interpretation of combining fillet weld with other symbols
Interpretation of groove Weld Symbol
 Interpretation of depth of groove preparation




Interpretation of groove weld size
Interpretation of root opening
Interpretation of groove angle
Interpretation of contour and finishing

Interpretation of groove weld combination interpretation


Interpretation of back gouging
Interpretation of backing and spacer material symbols

Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.
Interpretation of consumable inserts
Identification of Back or Backing and Melt-Thru welds
 Identification of size of backing and melt-thru weld symbols

Identification of contour and finishing symbols

Identification of applications of back or backing symbols

Identification of applications of melt-thru symbols
Written homework
assignments, chapter
test, comprehensive
midterm exam and
comprehensive final
exam.

7. Student Assignments:
1.
2.
3.
4.
5.
Read assigned blueprint textbook chapters.
Answer assigned chapter review questions.
Answer assigned summary review questions.
Read blueprint handout materials.
Answer blueprint handout material questions
Equipment, Materials and Other Resources Needed: List all audiovisual requirements, handouts/supplemental materials, and equipment
necessary to teach this unit in the following table.
Obj. #
Computer system
Computer assisted projection
system
Paper, ¼” square graph paper,
Obj. #
Equipment, Materials, Etc.
A1.1.1
Thru
A1.1.4
Theory-Equipment, Materials,
Etc.
PPE for blueprint reading, wrap-around, safety glasses, soapstone
&holder, half round file, 25’ Tape
Measure, 18” tri-square, clear
safety face shields etc. (see tool
list attached to syllabus)
12” protractor square
Obj.#
A1.2.1
Thru
A1.2.3 ,
Equipment, Materials, Etc.
PPE for blueprint reading, wrap-around, safety glasses, soapstone
&holder, half round file, 25’ Tape
Measure, 18” tri-square, clear
safety face shields etc. (see tool
list attached to syllabus)
12” protractor square

8. pencils, 12” clear ruler, pens and
three ring notebook binder
A1.3.1
Thru
A1.3.3
PPE for blueprint reading, wrap-around, safety glasses, soapstone
&holder, half round file, 25’ Tape
Measure, 18” tri-square, clear
safety face shields etc. (see tool
list attached to syllabus)
A1.4.1
Thru
A1.4.9 ,
12” protractor square
A1.5.1 ,
PPE for blueprint reading, wrapa-round, safety glasses,
soapstone &holder, half round
file, 25’ Tape Measure, 18” trisquare, clear safety face shields
etc. (see tool list attached to
syllabus)
12” protractor square
A1.6.1
Thru
A1.6.5 ,
12” protractor square
A1.7.1
Thru
A1.7.6 ,
PPE for blueprint reading, wrapa-round, safety glasses,
soapstone &holder, half round
file, 25’ Tape Measure, 18” trisquare, clear safety face shields
etc. (see tool list attached to
syllabus)
PPE for blueprint reading, wrapa-round, safety glasses,
soapstone &holder, half round
file, 25’ Tape Measure, 18” trisquare, clear safety face shields
etc. (see tool list attached to
syllabus)
12” protractor square
PPE for blueprint reading, wrapa-round, safety glasses,
soapstone &holder, half round
file, 25’ Tape Measure, 18” trisquare, clear safety face shields
etc. (see tool list attached to
syllabus)
12” protractor square
A1.8.1
Thru
A1.8.3 ,
12” protractor square
A1.9.1
Thru
A1.9.7 ,
A1.11.1
Thru
A1.11.5
PPE for blueprint reading, wrap-around, safety glasses, soapstone
&holder, half round file, 25’ Tape
Measure, 18” tri-square, clear
safety face shields etc. (see tool
list attached to syllabus)
PPE for blueprint reading, wrapa-round, safety glasses,
soapstone &holder, half round
file, 25’ Tape Measure, 18” trisquare, clear safety face shields
etc. (see tool list attached to
syllabus)
12” protractor square
A1.10.1
Thru
A1.10.11
A1.12.1
Thru
A1.12.9 ,
PPE for blueprint reading, wrapa-round, safety glasses,
soapstone &holder, half round
file, 25’ Tape Measure, 18” trisquare, clear safety face shields
etc. (see tool list attached to
syllabus)
12” protractor square

9. A1.13.1
Thru
A1.13.4
PPE for blueprint reading, wrapa-round, safety glasses,
soapstone &holder, half round
file, 25’ Tape Measure, 18” trisquare, clear safety face shields
etc. (see tool list attached to
syllabus)
12” protractor square
WDT110 Blue Print Reading Lesson Plans by Dewey Lee, Mary Ann Hudson is licensed under a Creative Commons Attribution 4.0 International License.