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Angles and Lines in Song
15
Types of Angles and Lines
Lines
Angles
Example 3
Example 2
Perpendicular Lines
Challenge:
Types of Lines
Parallel Lines
Example 1
Acute Angle
Types of Angles
Obtuse Angle
Right Angle
Straight Angle
Challenge:
Example 2
Example 1
Come up with a hand motion to represent a given angle
Come up with a hand motion to represent a given type of line
Demonstration
Challenge
Demonstration
Perform the motion for the class with your partner!
"And a straight angle is 180."
YMCA Song
"The names of the angles are right, acute, obtuse...
Perform the motion for the class with your partner!
"Right Angle it is 90 degrees...
"Now let's start from the beginning."
"Do you see parallel, lookin' like a double 'l'...
"Do Your Ears Hang Low"
"Parallel or Perpendicular."
How do angles and lines relate to different types of triangles?
"We say obtuse angle, more than 90 degrees...
"And a straight angle is 180."
"We say acute angle, less than 90 degrees...
"The names of the angles are right, acute, obtuse...
"Right, acute, obtuse...
"The names of the angles are right, acute, obtuse...
"Or perpendicular, two lines when they come together...
"But when two lines come together, making right angles we yell, Perpendicular."
Perform the angles and sing along!
Perform the line motions and sing along!
"Now everybody sing it with me."
YMCA Angles Song Demo
0:23-0:53
"Right Angle, it is 90 degrees...
"Lines that never cross, never would as well...
A straight angle, is 180 degrees...
"A straight angle is 180 degrees...
"Parallel, lines that never cross...
"We say obtuse angle, more than 90 degrees...
"We say acute angle, less than 90 degrees...
Hint: Obtuse Triangle