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Everyday MathGrade 4 – Lesson 1.4
Parallelograms
Copyright © 2010 Kelly Mott
Copyright © 2010 Kelly Mott
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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REVIEW
ACopyright © 2010 Kelly Mott
Name the FigurePoint
BA
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Name the FigureLine Segment
A B C
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Name the FigureLine
BA
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Name the FigureRay
A
BC
Name the Angle
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Right Angle
90 degrees
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Name the AngleAcute Angle
Less than 90 degrees
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Name the AngleObtuse Angle
Greater than 90 degrees and less than 180 degrees
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Name the AngleStraight Angle
180 degrees
Name the Triangle
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Right Triangle
Name the Triangle
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Isosceles Triangle
Name the Triangle
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Equilateral Triangle
Name the Triangles
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Scalene Triangle
Name the Quadrangle
4
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Rectangle
Name the Quadrangle
4Copyright © 2010 Kelly Mott
Square
Name the Quadrangle
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Rhombus
Name the Quadrangle
4Copyright © 2010 Kelly Mott
Trapezoid
Name the Quadrangle
4Copyright © 2010 Kelly Mott
Kite
Name the Quadrangle
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1. Rectangle2. Square3. Trapezoid4. Rhombus5. Kite
Name the Quadrangle
Rectangle
Square
Trapezoid
Rhombus Kite
20% 20% 20%20%20%
Copyright © 2010 Kelly Mott
1. Rectangle2. Square3. Trapezoid4. Rhombus5. Kite
Name the Quadrangle
Rectangle
Square
Trapezoid
Rhombus Kite
20% 20% 20%20%20%
Copyright © 2010 Kelly Mott
1. Rectangle2. Square3. Trapezoid4. Rhombus5. Kite
Name the Quadrangle
Rectangle
Square
Trapezoid
Rhombus Kite
20% 20% 20%20%20%
Copyright © 2010 Kelly Mott
1. Rectangle2. Square3. Trapezoid4. Rhombus5. Kite
Name the Quadrangle
Rectangle
Square
Trapezoid
Rhombus Kite
20% 20% 20%20%20%
Copyright © 2010 Kelly Mott
1. Rectangle2. Square3. Trapezoid4. Rhombus5. Kite
Copyright © 2010 Kelly Mott
Lesson 1.4Skill: Parallelograms
Part 1: What does it mean if something is parallel?
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• f
• If 2 things are parallel it means that they are the same distance apart and that they never touch.
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What does it mean if something is parallel?
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Parallel Lines
• f
• These lines are called parallel lines because they are the ______________ distance apart and they _________________ touch.
A B
C D
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Parallel Lines
• f
• This is how you would write line AB is parallel to line CD:
A
B
C
Dor
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Parallel Lines
F
E F
G H
or or
JK
LM
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Parallel Lines Practice 1
• f
• These line segments are called parallel line segments because they are the ___________ distance apart and they _________________ touch.
A B
C D
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Parallel Line Segments
• f
• This is how you would write line segment AB is parallel to line segment CD:
A
B
C
Dor
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Parallel Line Segments
F
E F
G H
or or
JK
LM
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Parallel Line Segments Practice 1
• f
• These rays are called parallel rays because they are the ___________ distance apart and they _________________ touch.
A B
C D
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Parallel Rays
• f
• This is how you would write ray AB is parallel to ray CD:
A
B
C
D
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Parallel Rays
F
E F
G HJ
K
LM
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Parallel Rays Practice 1
Part 1: What is a parallelogram?
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• A parallelogram is a quadrangle with opposite sides _______________ and opposite angles _______________.
• Note: The opposite sides must be parallel to each other.
What is a parallelogram?
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• A _________________, _________________, and _________________are all considered parallelograms because:
1. Opposite sides are equal 2. Opposite angles are equal
Parallelograms
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• These are all parallelograms:
Parallelograms
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• These are not parallelograms:
Not Parallelograms
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Practice 1: Is it a parallelogram?A.
Yes or NoCopyright © 2010 Kelly Mott
B.
Yes or No
Practice 2: Is it a parallelogram?C.
Yes or NoCopyright © 2010 Kelly Mott
D.
Yes or No
Practice 3: Is it a parallelogram?E.
Yes or NoCopyright © 2010 Kelly Mott
F.
Yes or No
Practice 4: Is it a parallelogram?E.
Yes or NoCopyright © 2010 Kelly Mott
F.
Yes or No
• Remember parallelograms have opposite equal sides and opposite equal angles.
Circle the Parallelograms
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Part 4: Turning Point Review
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Is it a parallelogram?
Yes N
o
50%50%
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1.Yes2.No
Is it a parallelogram?
Yes N
o
50%50%
Copyright © 2010 Kelly Mott
1.Yes2.No
Is it a parallelogram?
Yes N
o
50%50%
Copyright © 2010 Kelly Mott
1.Yes2.No
Is it a parallelogram?
Yes N
o
50%50%
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1.Yes2.No
Is it a parallelogram?
Yes N
o
50%50%
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1.Yes2.No
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Does this make sense?
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HOMEWORKPoster Showing Parallelograms
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HOMEWORK : PARALLELOGRAM POSTER
Rectangle SquareRhombus
Parallelograms
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Does this make sense?
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HOMEWORKEveryday Math Journal Page: 8
Copyright © 20010Kelly Mott
Copyright © 2010 Kelly Mott
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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What kind of lines are these?
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Parallel Lines
What kind of line segments are these?
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Parallel Line Segments
What kind of rays are these?
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Parallel Rays
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