Everyday Math
Grade 4 – Lesson 1.4
Parallelograms
Copyright © 2010 Kelly Mott
Lesson Components:
Part 1: Math Boxes 1.4 Page 9
Part 2: Geometry Review
Part 3: PowerPoint Lesson
Part 4: Turning Point Quiz
Part 5: Math Journal Page 8
Part 6: Parallelogram Poster
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Math Boxes
Lesson 1.4
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Math Box 1:
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Math Box 2:
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Math Box 3:
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Math Box 4:
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Math Box 5:
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GEOMETREY
REVIEW
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NamePoint
the Figure
A
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Name
the Figure
Line Segment
A
B
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Name Line
the Figure
A
B
C
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Name Ray
the Figure
A
B
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Name
Angle
Rightthe
Angle
A
90
degrees
B
C
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Name
the
Angle
Acute
Angle
Less than 90
degrees
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Name
theAngle
Angle
Obtuse
Greater than 90 degrees
and less than 180 degrees
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Name
theAngle
Angle
Straight
180 degrees
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Lesson 1.4
Skill: Parallelograms
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Part 1: What does it mean if
something is parallel?
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What does it mean if something is parallel?
•
f
• If 2 things are parallel, it means that they are
an equal distance apart and that they never
touch.
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Circle the Pairs of Parallel Lines
• f
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Naming Parallel Lines
J
G
I
K
D
E
H
J
L
M
F
Name:
Name:
______________________ ______________________
______________________ ______________________
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Part 2: What is a quadrangle?
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What is an quadrangle?
• A quadrangle is a closed figure that has ___
sides and ___ angles.
• Another name for a quadrangle is a
quadrilateral.
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Practice 1: Is it a quadrangle?
A.
Yes or No
B.
Yes or No
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Practice 2: Is it a quadrangle?
C.
Yes or No
D.
Yes or No
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Practice 3: Is it a quadrangle?
E.
Yes or No
F.
Yes or No
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Part 3: Special Quadrangles
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Square
• A square is a quadrangle with 4 __________
sides, and 4 __________ angles.
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Rectangle
• A rectangle is a quadrangle with 4 sides and 4
__________ angles.
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Rhombus
• A rhombus is a quadrangle with 4 __________
sides. Opposite sides sides are parallel and
opposite angles are __________.
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Trapezoids
• A trapezoid is a quadrangle with 1
__________ of sides that are parallel.
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Kite
• A kite is a quadrangle with 2 pairs of equal
sides.
• The equal sides are next to each other.
• The four sides cannot have the same length.
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Match the Quadrangles:
1. Square
2. Rectangle
3. Trapezoid
4. Rhombus
5. Kite
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Part 4: What is a parallelogram?
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What is a parallelogram?
• A parallelogram is a quadrangle with opposite
sides equal and opposite angles equal.
• Note: The opposite sides must be parallel to
each other.
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Parallelograms
• A _________________, _________________,
and _________________are all considered
parallelograms because:
1. Opposite sides are equal
2. Opposite angles are equal
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Parallelograms
• These are all parallelograms:
rectangle
rhombus
parallelogram
square
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Not Parallelograms
• These are not parallelograms:
kite
trapezoid
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Practice 1: Is it a parallelogram?
A.
Yes or No
B.
Yes or No
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Practice 2: Is it a parallelogram?
C.
Yes or No
D.
Yes or No
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Practice 3: Is it a parallelogram?
E.
Yes or No
F.
Yes or No
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Practice 4: Is it a parallelogram?
E.
Yes or No
F.
Yes or No
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Circle the Parallelograms
• Remember parallelograms have opposite
equal sides and opposite equal angles.
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Part 5: Turning Point Review
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Is it a parallelogram?
50%
50%
No
Ye
s
1.Yes
2.No
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Is it a parallelogram?
50%
50%
No
Ye
s
1.Yes
2.No
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Is it a parallelogram?
50%
50%
No
Ye
s
1.Yes
2.No
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Is it a parallelogram?
50%
50%
No
Ye
s
1.Yes
2.No
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Is it a parallelogram?
50%
50%
No
Ye
s
1.Yes
2.No
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Does this make sense?
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CLASSWORK/HOMEWORK
Everyday Math Journal Page: 8
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HOMEWORK
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HOMEWORK
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HOMEWORK
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HOMEWORK
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HOMEWORK
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HOMEWORK
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CLASSWORK/HOMEWORK
Poster Showing Parallelograms
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HOMEWORK : PARALLELOGRAM POSTER
Parallelograms
Rectangle
Rhombus
Square
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Does this make sense?
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