Lesson Plan Course Title: Manufacturing Engineering
Session Title: Fabrication and Tools (CAD)
Performance Objective:
After completing this lesson, students will be able to demonstrate they have an understanding of
how to use computer-aided design (CAD) software programs used in Manufacturing
Engineering to create computer-aided design images to match the criteria in the 2 Dimensional
Drawing Rubrics.
Specific Objectives:
 Discuss current uses of computer-aided design software programs.
 Research and discuss terms used in a typical computer-aided design software program.
 Construct computer-aided design images using a typical computer-aided design
software program and discuss applications.
Preparation TEKS Correlations:
This lesson, as published, correlates to the following TEKS. Any changes/alterations to the
activities may result in the elimination of any or all of the TEKS listed.
Manufacturing Engineering:

130.329(c)(3)(A)
...use computer-assisted design software to complete a project.
Interdisciplinary Correlations:
Physics:

112.39(c)(2)(A)(B)(C)(D)
...know the definition of science and understand that it has limitations, as specified in
subsection (b)(2) of this section;
...know that scientific hypotheses are tentative and testable statements that must be
capable of being supported or not supported by observational evidence. Hypotheses of
durable explanatory power which have been tested over a wide variety of conditions are
incorporated into theories;
...know that scientific theories are based on natural and physical phenomena and are
capable of being tested by multiple independent researchers. Unlike hypotheses,
Copyright © Texas Education Agency, 2012. All rights reserved.
1 scientific theories are well-established and highly-reliable explanations, but may be
subject to change as new areas of science and new technologies are developed;
...distinguish between scientific hypotheses and scientific theories;
English Language Arts and Reading, English I:

110.31(b)(1)(E)
…use a dictionary, a glossary, or a thesaurus (printed or electronic) to determine or
confirm the meanings of words and phrases, including their connotations and
denotations, and their etymology,

110.31(b)(12) - Reading/Media Literacy. Students use comprehension skills to analyze
how words, images, graphics, and sounds work together in various forms to impact
meaning.

110.31(b)(19) - Oral and Written Conventions/Spelling. Students spell correctly.
Students are expected to spell correctly, including using various resources to determine
and check correct spellings.

110.31(b)(24)(A) - Listening and Speaking/Listening. Students will use
comprehension skills to listen attentively to others in formal and informal settings...
…listen responsively to a speaker by taking notes that summarize, synthesize, or
highlight the speaker's ideas for critical reflection and by asking questions related to the
content for clarification and elaboration;

110.31(b)(25) - Listening and Speaking/Speaking. Students speak clearly and to the
point, using the conventions of language... Students are expected to give presentations
using informal, formal, and technical language effectively to meet the needs of
audience...;
Occupational Correlation: (reference: O*Net – www.onetonline.org)
Mechanical Engineers 17-2141.00
Similar Job Titles: Fuel Cell Engineers, Automotive Engineers
Tasks:
 Read and interpret blueprints, technical drawings, schematics, or computer-generated
reports
 Assist drafters in developing the structural design of products using drafting tools or
computer-assisted design (CAD) or drafting equipment and software
Soft Skills: Critical Thinking; Problem Solving; Operations Analysis
Copyright © Texas Education Agency, 2012. All rights reserved.
2 Teacher Preparation:
Teachers should review the Matching Definitions handout and Fabrication and Tools (CAD)
presentation and notes. Teachers are also encouraged to conduct their own research on lesson
material. The teacher will need to select the computer-aided design software to be used in this
lesson, and show videos or photos of computer-aided design images and finished products like
appliances, buildings and mechanical parts.
References:
O*NET – www.onetonline.org Instructional Aids:
1. Fabrication and Tools (CAD) presentation and notes
2. Matching Definitions handout and answer key
3. Warm-up Activity (slide 3)
4. Project 1: Bracket handout
5. Project 2: Schematic handout
Materials Needed:
1. Matching Definitions handout
2. Warm-up Activity (slide 3)
3. Project 1: Bracket handout for each student
4. Project 2: Schematic handout for each student
5. Pen or pencil
6. Paper
7. 2 Dimensional Drawing Project 1: (Bracket) Rubric for each student
8. 2 Dimensional Drawing Project 2: (Schematic) Rubric for each student
Equipment Needed:
1. Computer with computer-aided design software program installed
2. Internet access (optional)
3. Overhead projector
Learner Preparation:
Students must have basic computer skills and be familiar with a Windows operating
environment.
Introduction Introduction (LSI Quadrant I):
SAY: Having an understanding of computer-aided design software will greatly contribute to your
career success.
Copyright © Texas Education Agency, 2012. All rights reserved.
3 ASK: How many of you like to draw with pencil and paper or on a computer?
SHOW: Videos or photos of computer-aided design images
SAY: Computer-aided design software programs give you the ability to create precise,
2 dimensional and 3 dimensional digital images.
ASK: How beneficial will it be for you to have the ability to create a digital portfolio of
your work to email to potential employers or upload to your own website?
SHOW: Photos of 2 dimensional and 3 dimensional computer-aided design images and
finished products like appliances, buildings and mechanical parts.
Outline Outline (LSI Quadrant II):
Instructors can use the presentation, slides, handouts, and note pages in
conjunction with the following outline.
MI
Outline
Notes to Instructor
I.
Introduction
Begin Fabrication and Tools
(CAD) presentation.
Bell Work Activity - Slide 2:
have students work on the Bell
Work Activity.
Warm-up Activity – Slide 3:
using the Matching Definitions
handout, students will pairshare and teach each other
the terms and definitions. They
may do computer-based
research to look up the
meaning.
II.
Computer-aided Design (CAD)
A. Software overview
B. Technical drawing review
Discuss the importance of
having written drawings for
construction and product
development, etc.
Slides 4-5
Each slide is meant to be
discussed. Study the software
program. Have some
background knowledge, and
challenge the students to make
some contributions to the
discussion.
Copyright © Texas Education Agency, 2012. All rights reserved.
4 III. Computer-aided Design Software
A. Project 1: Bracket CAD drawing
B. Project 2: Schematic CAD
drawing
Distribute Project 1: Bracket
handout and Project 2:
Schematic handout for each
student. Let students use a
computer-aided design
software program to complete
both drawing projects.
Slides 6-7
Distribute the 2 Dimensional
IV. Assessment – 2 Dimensional
Drawing Rubrics for Project 1
Drawing Rubric
and 2 and have each student
A. Project 1: (Bracket) Rubric for
match the criteria in the rubric.
each student
B. Project 2: (Schematic) Rubric for
each student
Verbal
Linguistic
Logical
Mathematic
Visual
Spatial
Musical
Rhythmic
Bodily
Kinesthetic
Intrapersonal
Interpersonal
Naturalist
Existentialist
Application Guided Practice (LSI Quadrant III):
The teacher will guide the discussion when presenting the Fabrication and Tools (CAD)
presentation. Using Matching Definitions handout, the teacher will allow the students to pairshare and teach each other the terms and definitions. They may do computer-based research to
look up the meaning.
Independent Practice (LSI Quadrant III):
Students will complete Bell Work Activity and Warm-up Activity, doing computer-based research
to look up and match the meaning of words on the handout, writing out definitions on a sheet of
paper. Students will complete the Project 1: Bracket (CAD) and Project 2: Schematic (CAD) to
match the criteria in the 2 Dimensional Drawing Rubric.
Summary Review (LSI Quadrants I and IV):
Question: Why is it necessary to create technical drawings before creating structures and
products?
Answer: Technical drawing allows for precise measurements and consistent sizes.
Copyright © Texas Education Agency, 2012. All rights reserved.
5 Question: List an advantage of computer-aided design drawings versus hand drawings.
Answer: The ability to store and share drawings digitally and at a low cost.
Question: Do you have to have a high level of knowledge of computer programming to use
computer-aided design software programs?
Answer: No, most computer-aided design programs are very user friendly.
Evaluation Informal Assessment (LSI Quadrant III):
Oral question/answer. Students will complete definitions teacher has on the board from terms in
the definitions handout.
Formal Assessment (LSI Quadrant III, IV):
Students will complete Matching Definitions handout and Project 1: Bracket and Project 2:
Schematic using computer-aided design software program to match the criteria in the
2 Dimensional Drawing Rubrics.
Extension Extension/Enrichment (LSI Quadrant IV):
1. Students can work in groups to brainstorm an idea for a new product and use a
computer-aided design software program to create a drawing of it.
2. Students can conduct research and gather data on 3 computer-aided design programs
currently used in Industry then create a report to discuss the strengths and weaknesses
of each program to present during class. Copyright © Texas Education Agency, 2012. All rights reserved.
6 Name: ________________________________Date: ________________Class:______
Manufacturing Engineering
Fabrication and Tools (CAD)
Matching Definitions Directions: Match the terms in Section 1 with the definitions in Section 2. Section 1: A. dpi (dots per inch) B. CMYK (Cyan, Magenta, Yellow, and Black) C. PDF (Portable Document Format). D. RTF (Rich Text Format) E. Bitmap Section 2: __________: Raster image, its representation in computer memory in the form of a pixel array. __________: Color model used for representation of printed color hues, especially in the press industry. __________: Points per inch ‐ or display resolution expressed in number of points per one inch. __________: File format for document exchange by Adobe. Adobe Acrobat Reader application can be used to view PDF files. __________: A file format developed by Microsoft; Contains formatted documents to be transferred between applications. Copyright © Texas Education Agency, 2012. All rights reserved.
7 Manufacturing Engineering
Fabrication and Tools (CAD)
Matching Definitions Answer Key E. Bitmap: Raster image, its representation in computer memory in the form of a pixel array. B. CMYK ‐ (Cyan, Magenta, Yellow, and Black): Color model used for representation of printed color hues, especially in the press industry. A. dpi ‐ (dots per inch): Points per inch ‐ or display resolution expressed in number of points per one inch. C. PDF ‐ (Portable Document Format): File format for document exchange by Adobe. Adobe Acrobat Reader application can be used to view PDF files. D. RTF – (Rich Text Format): A file format developed by Microsoft; contains formatted documents to be transferred between applications. Copyright © Texas Education Agency, 2012. All rights reserved.
8 Name: ________________________________Date: ________________Class:______
Manufacturing Engineering
Fabrication and Tools (CAD)
Project 1: Bracket Directions: Using a computer‐aided design (CAD) software program, draw the following shapes, and include the line type, colors and text shown below. Name:
Copyright © Texas Education Agency, 2012. All rights reserved.
9 Name: ________________________________Date: ________________Class:______
Manufacturing Engineering
Fabrication and Tools (CAD)
Project 2: Schematic Directions: Using the standard software program, complete the following schematic project. Copyright © Texas Education Agency, 2012. All rights reserved.
10 2 Dimensional Drawing Rubrics
Task Statement: Construct a 2 Dimensional Drawing.
Task Assignment: Construct a 2 Dimensional Drawing that accurately and neatly meets the specifications in both the Project 1 (Bracket) and
Project 2 (Schematic) drawing projects in this lesson by using pencil and then CAD.
Criteria Categories
(Novice to Exemplary)
Novice
Developing
Accomplished
1
2
3
Lay out overall shape, length, and Pencil sketch
Pencil Sketch
Pencil and CAD lines
height in pencil then CAD
started
completed
going in the right
direction
(Possible 15 points)
(1-4 points)
(4-8 points)
(8-10 points)
Lay out overall shape to
Pencil sketch
Pencil Sketch
Pencil and CAD lines
dimensions in pencil then CAD
started
completed
going in the right
direction
(Possible 15 points)
(1-4 points)
(4-8 points)
(8-10 points)
Dimension length of line segment Line segments not
Less line segments
Lines and symbols
in pencil then CAD
connected, double
not connected, less
and letters are
lines, over run
double lines, less
proportional,
corners
over run corners
connected, sharp,
and intersect
(Possible 15 points)
(1-4 points)
(4-8 points)
(8-10 points)
Dimension height of line segment Line segments not
Less line segments
Lines and symbols
in pencil then CAD
connected, double
not connected, less
and letters are
lines, over run
double lines, less
proportional,
corners
over run corners
connected, sharp,
and intersect
(Possible 15 points)
(1-4 points)
(4-8 points)
(8-10 points)
Finish drawing, as shown, in
Pencil sketch
Pencil Sketch
Pencil and CAD the
pencil then CAD
started
completed
component names
and letters with
indicating arrows on
the drawing
(Possible 25 points)
(1-10 points)
(10 to 14 points)
(14 to 16 points)
Neatness
Smudges, double
Less smudges, few
No smudges, lines
lines, light and
double lines, less
intersect and are dark
fuzzy lines
over run
and sharp
(Possible 15 points)
(1-4 points)
(4-8 points)
(8-10 points)
A = 66-100 points; B = 54-66 points; C = 30-54 points; D = 6-30 points
Concepts/Skills to be Assessed
Exemplary
4
Pencil and CAD
are accurate within
1/16 of an inch
(10-15 points)
Pencil and CAD
are accurate within
1/16 of an inch
(10-15 points)
Dark, sharp lines with
100% accuracy and
color
Points
Earned
(10-15 points)
Dark, sharp lines with
100% accuracy and
color
(10-15 points)
Pencil and CAD
are 100% accurate
within specifications
given
(16 to 25 points)
Dark, sharp, accurate
lines
(10-15 points)
Total Points___________
Copyright © Texas Education Agency, 2012. All rights reserved.
11 1
Notes:
Discuss the value of technical drawings in manufacturing. Technical drawings give
engineers the ability to communicate specific ideas to the people who ultimately
complete the finished product. It is important to have a visual idea of where they
are going.
2
NOTES:
Definitions make a great warm up activity. Have
the class complete the Matching Definitions handout.
3
NOTES:
Computer-Aided Design (CAD) is used in the design of tools, machinery and in
the drafting and design of all types of buildings, from small residential types
(houses) to the largest commercial and industrial structures (hospitals and
factories). CAD is mainly used for detailed engineering of three dimension (3D)
models and/or two dimension (2D) drawings of physical components, but it is also
used throughout the engineering process from conceptual design and layout of
products, through strength and dynamic analysis of assemblies to definition of
manufacturing methods of components. It can also be used to design objects
and household products.
4
NOTES:
Teachers: Conduct research and identify the CAD program you would like to use
to complete the projects. You may purchase your own program or download one
of the many versions from the internet.
5
Notes
Teachers: After the project is complete have each student print their work and
compare the drawing dimensions with actual dimensions using a ruler and similar
components found in a typical home or automobile.
6