4.MD.C.5a

An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns through 1/360 of a circle is called a “one-degree angle,” and can be used to measure angles.

 
9 Lesson(s)
   

Angles and Pattern Blocks

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Melissa Romano
Helena, MT
Environment: Suburban
 
Big Idea:

In this lesson, students work with a partner and pattern blocks to discover angle measurements and properties.

 
Favorites (8)
 
Resources (6)
 
Reflections (1)
pattern
   

Right, Acute, & Obtuse Angles

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Kara Nelson
Environment: Urban
 
Big Idea:

Students will learn how to use a protractor and will construct definitions for right, acute, and obtuse angles.

 
Favorites (11)
 
Resources (40)
 
Reflections (1)
using a protractor
   

Complementary & Supplementary Angles

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Kara Nelson
Environment: Urban
 
Big Idea:

Through an exploration process, students will practice using a protractor, recording observations, and constructing definitions for complementary and supplementary angles.

 
Favorites (7)
 
Resources (38)
 
Reflections (1)
measuring angles
   

Mini Golf Mystery - Using a Protractor

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Melissa Romano
Helena, MT
Environment: Suburban
 
Big Idea:

In this lesson, students create angles on a mini golf course in order to practice using a protractor.

 
Favorites (6)
 
Resources (15)
 
Reflections (2)
   

Practice with Protractors

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Melissa Romano
Helena, MT
Environment: Suburban
 
Big Idea:

In this direct instructional approach lesson, students practice using a protractor to measure various sized angles.

 
Favorites (2)
 
Resources (7)
 
Reflections (1)
   

Adding up Angles

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Melissa Romano
Helena, MT
Environment: Suburban
 
Big Idea:

In this lesson, students are up and out of their seats in an engaging problem solving strategy. Students deepen their understanding about angles as they talk with peers about various strategies to determine angle measurements.

 
Favorites (6)
 
Resources (10)
 
Reflections (1)
adding angles cover
   

Measuring Angles Inside Shapes

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Kara Nelson
Environment: Urban
 
Big Idea:

Students will take turns measuring and finding the sum of angles within a variety of shapes.

 
Favorites (4)
 
Resources (31)
 
Reflections (1)
student measuring
   

Circles

5th Grade Math » Unit: Geometry
5th Grade Math » Unit: Geometry
Cathy Skinner
Scottsdale, AZ
Environment: Urban
 
Big Idea:

Tying it together - literature and math. Thank you Sir Cumference and the Knights of the Round Table!

 
Favorites (1)
 
Resources (17)
img 0175
   

Types of Triangles

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Kara Nelson
Environment: Urban
 
Big Idea:

Students will classify triangles into groups and will later determine the attributes of different triangle types.

 
Favorites (8)
 
Resources (31)
 
Reflections (1)
triangle categories
Common Core Math
 
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