Grade 11 Essential Math Unit 5: Scale Representations
Learning Goal(s):
Unit 5: Scale Representations
1) Solve problems that involve scale.
2) Model and draw 3-D objects and their views.
3) Draw and describe exploded views, component parts, and scale diagrams of simple 3-D objects.
Learning Activities:
Complete the following questions, and make sure to check your answers at the back of the textbook.
There is an answer key there. Make sure to ask questions in class if you are not getting the right
answers.
____p.215-217 #1-8 (Section 5.1)
____p. 226-231 #1-8 (Section 5.2)
____p. 244-246 #1-6 (Section 5.3)
____p. 248-251 #1-6 (Review)
Assessment:
This unit will have two assessment pieces – a project and a test. The test will be based on the review.
You will hand in the project by the date of the test. The test and the project will each be worth 5% of
your final grade.
Practice Test
Unit Test date
Unit Project due
Gr.11 EM Unit 5 Project: Produce a Set of Drawings and a Scale Model
Complete the following steps:
______ p.209 Read “Project Overview”
_____
p.209 Read “Get Started” and start brainstorming
_____ p.209 Read “Final Presentation Checklist”  this outlines the criteria for the project, which the
rubric is based on.
_____ p.231 “Draw Your Object”  Complete and keep to hand in
_____ p. 247 “Complete Your Drawings and Build a Scale Model”  complete and keep to hand in
You will hand in:
1) A brief written description of your object, including a statement of its purpose and a list of the
materials it is made of
2) A preliminary sketch
3) The object’s actual measurements
4) Scale drawings of the front, side, top, and back views of the object
5) A 3-D isometric or one-point perspective drawing
6) An exploded diagram
7) A component parts diagram
8) A scale model
9) Reflection – comment on what you have learned about scale and representation as you
completed your project.
Essential Math Unit 5 Project Rubric: Produce a Set of Drawings and a Scale Model
0
1
Not
1 requirement
submitted met
2
2-3
requirements
met
2) Scale Drawings
Not
1 requirement
submitted met
2-3
requirements
met
3) 3-D Isometric or
one-point
perspective
drawing
Not
1 requirement
submitted met
2-3
requirements
met
4) Component
Parts diagram
Not
2-D
submitted component
parts diagram
is included,
labelled and
correct for
FEW parts
Not
1 requirement
submitted met
2-D
component
parts diagram
is included,
labelled and
correct for
MOST parts
2
requirements
met
Not
Scale model
submitted submitted
Scale model
submitted and
MOSTLY fits
the 3-D
diagram and
component
parts diagram
1)Written
description and
reflection
5) Exploded View
6) Scale Model
3
Included:
- Statement of purpose of
object
- List of materials
- Object’s measurement
- Reflection
Included correct diagrams for (as
applicable)
- Front
- Back
- Side
- top
Requirements:
- Vanishing point is clear
correct
- Horizon line is clear and
correct
- Drawing is clear, clean and
with crisp lines
- Drawing is free of errors
2-D component parts diagram is
included for ALL parts and is clearly
labelled and correct
All 3 requirements met:
- Has all parts correctly
represented
- All parts connect correctly
- All parts fit the 90˚ rule
Scale model submitted and fits the
3-D diagram and component parts
diagram
______/18 = ________ %