Transcript Parallel Lines and Parallelograms Draw and explain parallel lines.

Parallel Lines and Parallelograms
Draw and explain parallel lines.
Draw and define parallelograms.
What is a parallel line?
What is a parallel line?
• Parallel lines never cross.
What is a parallelogram?
A parallelogram has four sides, and
opposite sides are parallel.
A parallelogram has four sides, and
opposite sides are parallel.
Parallel
Measure the length of opposite sides
on parallelograms A, B, and C
What parallelograms can you find in
our classroom?
Parallelograms and Rectangles
What makes them different from each
other?
Look at the shapes on page 132.
• Are some of these parallelograms also
rectangles?
Look at the shapes on page 132.
• Are some of these parallelograms also
rectangles?
• Which ones?
Look at the shapes on page 132.
The other parallelograms are not rectangles.
How do these parallelograms differ from
rectangles?
Look at the shapes on page 132.
How are all parallelograms like rectangles?
Do page 132
• Draw skinny and fat parallelograms.
• Draw some with square corners.
• Draw some with non-square corners and sides
that slant differently.
Visual Thinking
• Can you find the hidden parallelograms?
Visual Thinking
• Can you find the hidden parallelograms on
page 133?
Parallel
Parallelograms
Relate Different Quadrilaterals
• Today’s Goal: Describe quadrilaterals,
parallelograms, rectangles, and squares.
• Categorize quadrilaterals.
• Describe how quadrilaterals are alike and
different
Vocabulary
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quadrilateral
parallelogram
rectangle
right angle
square
Quadrilaterals
Draw a square.
Draw a rectangle.
Draw a parallelogram.
Draw another shape with 4 sides:
What do all of these shapes have in
common?
Draw a square.
Draw a rectangle.
Draw a parallelogram.
Draw another shape with 4 sides:
All of these shapes have 4 sides
and each side is a line segment.
square
rectangle
parallelogram
quadrilateral
All of these shapes are
quadrilaterals!
Quadri means four latus means
sides
square
rectangle
parallelogram
quadrilateral
Quadrilateral means 4 sides.
square
rectangle
parallelogram
quadrilateral
Draw 4 parallelograms on your
board.
• What is a parallelogram?
• Are all parallelograms quadrilaterals?
• Are all quadrilaterals parallelograms?
Draw 3 rectangles on your board.
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What is a rectangle?
Are all rectangles quadrilaterals?
Are all quadrilaterals rectangles?
Are all rectangles parallelograms?
Are all parallelograms rectangles?
Draw 3 squares on your board.
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What is a square?
Are all squares quadrilaterals?
Are all quadrilaterals squares?
Are all squares parallelograms?
Are all parallelograms squares?
Are all squares rectangles?
Are all rectangles squares?
Sort Quadrilaterals
• Cut out the shapes on page 135.
• Separate the shapes into quadrilaterals and
not quadrilaterals.
• Which shapes are quadrilaterals?
• Why are all of the shapes that you listed
quadrilaterals?
Sort Quadrilaterals
• Sort the quadrilaterals into two groups:
parallelograms and not parallelograms
• Which shapes are parallelograms?
Sort Quadrilaterals
• Sort the quadrilaterals into two groups:
rectangles and not rectangles
• Which shapes are rectangles?
Sort Quadrilaterals
• Sort the quadrilaterals into two groups:
squares and not squares
• Which shapes are squares?
Identify Quadrilaterals
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Quadrilateral
Parallelogram
Rectangle
square
Identify Quadrilaterals
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Quadrilateral
Parallelogram
Rectangle
square
Identify Quadrilaterals
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Quadrilateral
Parallelogram
Rectangle
square
Now it is your turn!
• Do page 137.
• Place a check mark beside each word that
names the shape.