# Chapter 7x

```7-1: Customary
Units of
Measurement
IWBAT convert one unit of
customary measurement to
another.
Customary Units
Length
Weight
1 foot (ft) = 12 inches
(in)
1 yard (yd) = 36 inches
1 pound (lb) = 16
ounces
Capacity
1 cup (c) = 8 fluid
ounces (fl oz)
1 pint (pt) = 2 cups
1 yard = 3 feet
1 quart (qt) = 2 pints
1 mile (mi) = 5,280 feet
1 mile = 1,760 yards
1 ton (T) = 2,000 pounds
1 gallon (gal) = 4 quarts
Examples
1) 36 ft = ____ yd
Going from feet to yards,
you divide by 3
36 ÷ 3
12
36 ft = 12 yd
2) 36 ft = _____ in
Going from feet
to inches, you
multiply by 12
36 ∙ 12
432
36 ft = 432 in
3) 20 oz = _______ lb
1
4) 212 qt = _____ pt
Going from ounces
to pounds, you divide
by16
Going from quarts
to pints, you multiply
by 2
20
16
212 ∙ 2
1
1
4
16
43 2
∙
2 1
1
1
4
43
1
20 oz = 1 4 lb
1
212 qt = 43 pt
5) 9 yd 2 ft = _____ in
Convert yards to
inches, then feet
1
6) 1 4  = ____ lb
Going from tons to
pounds, you
multiply by 2000
1
1 ∙ 2000
4
9  ∙ 36
324
5 2000
∙
4
1
2  ∙ 12
24
2500
324 + 24
348
9 yd 2 ft = 348 in
1
14  = 2500
7-2: Metric Units
of
Measurement
IWBAT convert one unit of
metric measurement to
another.
Metric Units
 Based
on powers of 10
 Use as universal measurement of science
 Rest of the world uses this system
Stair Conversion
Using the Stairs
1) 1,600 m = ____ km
Moves up 3, move
decimal to the left three
times.
1,600 m = 1.6 km
2) 2.05 m = _____ cm
3) 4 kg = ______ g
Moves down 2, move
decimal to the right
twice.
Moves down 3, move
decimal to the right
three times.
2.05 m = 205 cm
4 kg = 4,000 g
Examples
1) 30 kL = ____ L
30 kL = 30,000 L
4) 2,500 mm= ____ m
2) ____ kL = 4,250 L
4.25 kL = 4,250 L
3) ____ dm = 1 m
10 dm = 1 m
2,500 mm = 2.5 m
7-3: Converting
Between
Measurement
Systems
IWBAT convert units
between the customary
and metric systems of
measurement.
Customary and Metric Unit
Equivalents
Customary and Metric Unit Equivalents
Length
Weight and Mass
Capacity
1 in = 2.54 cm
1 oz ≈ 28.35 g
1 L ≈ 1.06 qt
1 m ≈ 39.37 in
1 kg ≈ 2.2 lb
1 gal ≈ 3.79 L
1 m ≈ 1.09 yd
1 metric ton (t) ≈ 1.102 tons (T)
1 mi ≈ 1.61 km
Converting
 Use
proportions in correlation with the
conversion chart
7-4: Spatial
Reasoning
IWBAT use spatial reasoning
to solve problems.
7-5: Classifying
and Measuring
Angles
IWBAT draw, measure, and
classify angles.
Parts of an Angle
 Angles
are made up of two rays (sides)
and one vertex (corner)
 How wide or narrow an angle is, is its
measurement (in degrees)
Types of Angles





Right Angle = Exactly 90°
Obtuse Angle = Greater than 90°, Less than 180°
Acute Angle = Less than 90°, Greater than 0°
Straight Angle = Exactly 180°
Congruent Angels = Angles that have the same
measure
Classify the Angle
Drawing Angles
 Use
1.
2.
Identify the type of angle
Use protractor to draw straight lines and to
measure degrees.
a)
3.
a protractor
Depending on the type of angle, you will
use a specific side of the protractor
Draw arrows at the end of your lines so
that they are rays
Measuring Angles
 Identify

they type of angle
This will determine which side of the
 Line
up vertex with the central point of the
protractor

You may have to extend the rays to go
beyond the protractor
the degree measurement on the
protractor
7-6: Angle
Pairs
IWBAT find the measure of
an unknown angle from its
relationship to other angles
Types of Angle Pairs
Vertical Angles – Angles that share a vertex, but
have no sides in common. They are congruent.
Adjacent Angles – Two angles that share a
common side and vertex.
Supplementary Angles – Two angles with the sum of 180°
Complementary Angles – Two angles with the sum of 90°
Finding angle measures using
angle relationships
 Choose
the right relationship that will work
with the angle measure you’re looking for.



Vertical angles
Straight lines
Corners
7-7: Triangles
IWBAT classify and draw
triangles, and find missing
angles in triangles.
Triangles Classification
Triangles Classification
Finding Missing Angles
 All
triangles have a total of 180°
 If you are missing an angle, find the sum
of the given angles and subtract from
180°
Drawing Angles
 Use
 Use a ruler!
7-8:
IWBAT classify and find the
missing angles of
Finding Missing Angles
 All
quadrilaterals have a total of 360°
 Find the sum of the given angles and
subtract it from 360°
7-9: Make a
Table
IWBAT make a table to
solve a problem.
7-10:
Transformations
IWBAT identify translations,
rotations, and reflections of
two-dimensional figures.
Translation, Rotation, and
Reflection
Translation (slide)
Rotation (Turn)
Reflection (mirror)
Line Symmetry
7-11: Using
Time Zones
IWBAT use logical reasoning
to solve problems involving
time zones.
US Time Zones
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