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Introduction There are many different kinds of languages. You know English. You may have heard people speak other languages, such as Spanish, French, Korean or Italian. There is another language used to communicate that is not orally spoken. Sign language uses gestures and hand symbols.
Introduction When you use symbols or formulas in mathematics or science class, you are using still another form of communication. These symbols and formulas describe, generalize and communicate technological ideas.
Introduction Lines of varying style and thickness are used in specific ways to develop and communicate graphic messages about an object’s geometry. Imagine if all the lines had the same style, thickness, weight, and consistency. Understanding line types and when to use them will help your sketches look cleaner and more professional.
In your Notebook: • How is sketching like a language? • What do different types of lines tell us?
In your Notebook: 3. What is the purpose of sketching? 4. What are some common uses of sketching? 5.What are the advantages of sketching?
Purposes of Sketching Think through a design Convey your ideas Uses lines and symbols to describe a design
Common Uses of Sketching Brainstorm Communicate Document Measurements
Advantages of Sketching Convenient Inexpensive
Sketching Techniques Sketching a Line Practice sketching some lines using these steps: 1) 2) 3)
Sketching Techniques Lines Inclined Line Vertical Line Horizontal Line Rise Run Practice sketching some lines using these steps:
Sketching Techniques Sketching a Circle 2) Square in the diameter 1) Set up the diameter 3) Sketch diagonals Practice sketching some circles using these steps:
Sketching Techniques Sketching a Circle 4) Identify triangle centers 5) Sketch arcs
Circles Sketching a Circle 2) Square in the diameter 1) Set up the diameter 3) Sketch diagonals 4) Identify triangle centers 5) Sketch arcs
Isometric Sketch Width and depth lines are drawn at 30° from the horizon line. One view shows height, width, and depth.
Thumbnail Isometric Sketch Copy and label this cube on your isometric axis.
Alphabet of Lines Construction Object Hidden Center
Alphabet of Lines Construction Line Construction Line
Alphabet of Lines Object Line
Alphabet of Lines Hidden Line
Alphabet of Lines Center Line
Sketching Quiz #1 “One picture is worth a thousand words.”
Quiz #1 Use your notes to help you with this quiz!! On the graph grid, sketch and label the following: A line- inclined - with a rise of 8 and a run of 4 A circle with radius 3 (that is a diameter of 6!) An isometric cube with sides of 5 Answer Q 2,3