# GSS6 Point of View

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GEOMETRY                AND        SPATIAL SENSE: POINT                      OF   VIEW

Don’t forget to play Point out the View first! Go to mathfrog.ca for the link.

1. Draw the front, back, top, bottom, left, and right perspectives of the four different coloured
blocks at the left. (Note: Red = R, Blue = B, Yellow = Y, and Green = G)

G
R
B                                        Top                          Front    Right Side
Y

Bottom                          Back     Left Side
2. Read “Orthographic Perspectives!” below. For each three-dimensional object, draw the
orthographic perspectives. The first one has been done for you.
Orthographic
Orthographic Perspectives!                                                    Object
Perspectives
For any 3-dimensional object, the three
2-dimensional      views     are     called                          a)
orthographic perspectives. Usually they
are arranged in the following order.

Top
b)
Front                            Front       Right

Orthographic
Object
Perspectives
c)                                                                     d)

e)                                                                     f)

Expectation: i) sketch isometric perspectives and different views of three-dimensional figures
ii) build three-dimensional models given isometric sketches or different views
3. For each set of orthographic perspectives, draw the three-dimensional object represented.
The first one has been done for you.
Orthographic                                                            Orthographic
Object                                           Object
Perspectives                                                           Perspectives
a)                                                                      b)

c)                                                                      d)

e)                                                                      f)

4.                                          Alice    received    these   orthographic
perspective drawings of an object used by
her sports team. Sketch the 3-dimensional
object. What is the object? __________
Which sport does Alice play? __________

5. Orthographic perspective drawings are
often used in construction and engineering.                                              Did You Know?
Draw orthographic perspective drawings                                            On September 9, 2007 Asafa
of this inflated hot air balloon.                                                 Powell from Jamaica set a new
world record in the 100m dash
with a time of 9.74s. He
averaged just under 37 km/h.

Try This!
To the right, sketch a picture of a 3-D object that you
would expect to see in a house. On the next page,
draw the orthographic perspectives of this object.
Exchange that page with a classmate and have
him/her attempt to draw a picture of
your 3-D object. Compare his/her
drawing with your original sketch.

Expectation: i) sketch isometric perspectives and different views of three-dimensional figures
ii) build three-dimensional models given isometric sketches or different views
Your Orthographic Perspective Drawings

Top View

Front View                                                    Right View

Classmate’s 3-D Drawing

To challenge yourself, please try this point of view quiz found at
http://www.fi.uu.nl/toepassingen/00198/toepassing_wisweb.en.html.
Expectation: i) sketch isometric perspectives and different views of three-dimensional figures
ii) build three-dimensional models given isometric sketches or different views

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