1. The History of
Technical Drawing

2. Key Terms & Definitions 
Technical Drawing
The History of
Key Terms & Definitions 
Technical Drawing: A graphic representation of a real thing – an idea, an object, a process, or a system, using a universal language consisting of graphic symbols.
Drafting: The process of creating technical drawings.
Drafter/Draftsman: One who creates technical drawings.

3. Tech Ed Courses offered at BHS Technical Courses offered at BHS
Tech Draw & BHS
Do you enjoy:
Creating
Designing
Building
Drawing
Demolition
Model Making
If you answered yes to any of these then Technical Drawing is for you!
Tech Ed Courses offered at BHS
Architectural Drawing
Engineering Drawing
Challenges of Engineering I / Robotics
Challenges of Engineering II / Robotics
Technical Courses offered at BHS
Information Technology Classes
Graphic Design & Multimedia Classes
Web Management Classes

4. Technical Drawing & Design is an introductory course.
Tech Draw & BHS
Technical Drawing & Design is an introductory course.
Once you successfully complete TD&D you may then move on to take more advanced courses offered at BHS.
CTE Courses offered at BHS
Architectural Drawing
Engineering Drawing
Challenges of Engineering I / Robotics
Challenges of Engineering II / Robotics
Technical Courses offered at BHS
Information Technology Classes
Graphic Design & Multimedia Classes
Web Management Classes

5.  a means of communication.  the oldest form of written expression
Technical Drawing?
So, What is
Technical Drawing is:
 a means of communication.
 the oldest form of written expression
 Technical Drawing can be artistic and technical
 an art form
 A language known around the world

6. One picture is worth a thousand words 
activity !
One picture is worth a thousand words 
Confucius
Activity: Verbal VS. Pictorial Instruction
Groups: Notebook Buddy
Instruction: Miss. Conner
Materials: 4 simple drawings, 4 post-it notes, mechanical pencil, mynotebooks

7. One picture is worth a thousand words 
regroup !
One picture is worth a thousand words 
Confucius
Activity Conclusion: It is very difficult if not impossible to accurately and completely describe in words how to make simple objects. However, it is much easier to understand an object by simply being able to look at an image.

8. Technical Drawing
The History of
Technical Drawing has great value for technical and nontechnical people alike. It helps everyone communicate ideas clearly and effectively.
CRITICAL THINKING: In everyday life when are drawings commonly used as another way of giving explanations?

9. Technical Drawing
The History of

10. Artistic Technical Drawings
So, What is
Technical Drawing Types 
Artistic Technical Drawings
The artist expresses their ideas and emotions.
The objects created by the artist are drawn in the
artist’s own personal style.
The object looks the way the artist sees it, not necessarily the way the object truly appears.

11. Technical Drawing Types 
So, What is
Technical Drawing Types 
Technical Drawings
Objects are drawn how they truly appear.
Technical drawings show objects as accurately as possible.
Accuracy is the main objective of a technical drawing.

12. Technical Drawings must be: ACCURATE
The History of
Rules of Technical Drawing  
Technical Drawings must be: ACCURATE
It is a requirement by the industry that all drafters be accurate in everything they do.
A drawing that is not accurate, is worthless.
Inaccurate drawings lead to costly errors, which in turn will have a negative affect on a business.

13. Technical Drawings must be: DRAWN using the PROPER TECHNIQUES
The History of 
Technical Drawings must be: DRAWN using the PROPER TECHNIQUES
A technical drawing is read like a language (globally), therefore it must follow industry standards.
Using the proper technique will make drawings easy to read and comprehend.
Eliminates errors.

14. Technical Drawings must be: NEAT
The History of 
Technical Drawings must be: NEAT
Neatness makes the drawing easy to read & comprehend.
Eliminates errors caused by confusion.
Presents the drawing in an orderly and professional manner.

15. Technical Drawings must be:
The History of 
Technical Drawings must be:
DRAWN QUICKLY
“Time is Money”

16. The following were designed using
Technical Drawing
The following were designed using
Monuments in History 
Egyptian Pyramids

17. The following were designed using
Technical Drawing
The following were designed using
Monuments in History 
Greek Parthenon

18. The following were designed using
Technical Drawing
The following were designed using
Monuments in History 
Geodesic Dome

19. The following were designed using
Technical Drawing
The following were designed using
Monuments in History 
St. Louis Arch

20. The following were designed using
Technical Drawing
The following were designed using
Monuments in History 
Subway Tunnels