4.G.A.1

Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.

 
15 Lesson(s)
   

Who Turned Out the Lights?

4th Grade Science » Unit: Energy
4th Grade Science » Unit: Energy
Mary Ellen Kanthack
Genoa City, WI
Environment: Rural
 
Big Idea:

Students use lines, rays and diagrams to explain how light rays reflecting on an object help us see the object.

 
Favorites (23)
 
Resources (24)
 
Reflections (2)
light
   

Angle and line art

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

In this lesson, students create a unique art project by reviewing important geometric terms.

 
Favorites (44)
 
Resources (4)
 
Reflections (1)
lines and angles
   

Points, Lines, & Planes

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Rose Monroe
Memphis, TN
Environment: Urban
 
Big Idea:

Points, Lines, and planes are two-dimensional figures that have special attributes.

Standards:
 
Favorites (17)
 
Resources (15)
 
Reflections (1)
points lines planes
   

Regular vs. Irregular Polygons

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

Students will complete a powerpoint presentation and will explore the difference between regular and irregular polygons.

 
Favorites (8)
 
Resources (34)
 
Reflections (1)
students exploring
   

Measuring Angles

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Rose Monroe
Memphis, TN
Environment: Urban
 
Big Idea:

Angles can be drawn and measured using a protractor.

 
Favorites (7)
 
Resources (16)
 
Reflections (1)
measuring angles
   

Line Segments, Rays, & Angles

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Rose Monroe
Memphis, TN
Environment: Urban
 
Big Idea:

Lines and angles can be described with special names. A line segment has 2 end points. Angles can be acute, obtuse, right, or straight.

 
Favorites (10)
 
Resources (17)
 
Reflections (1)
line segment
   

Acute, Obtuse, and Right Angles

5th Grade Math » Unit: Geometry
5th Grade Math » Unit: Geometry
Erin Doughty
Grand Rapids, MI
Environment: Urban
 
Big Idea:

Kinesthetic activities help when reviewing our angle types.

 
Favorites (4)
 
Resources (10)
 
Reflections (1)
angles
   

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
   

Math and Art Collide - Using Protractors

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

In this creative lesson art and math collide. Students add to a previously completed art project in order to measure angles using a protractor.

 
Favorites (7)
 
Resources (6)
 
Reflections (1)
math and
   

Math Foldables - Geometry Assessment

4th Grade Math » Unit: Geometry
4th Grade Math » Unit: Geometry
Rose Monroe
Memphis, TN
Environment: Urban
 
Big Idea:

Foldables are alternative ways to assess students in math.

 
Favorites (9)
 
Resources (12)
 
Reflections (1)
   

Finding Angles

3rd Grade Math » Unit: Geometry
3rd Grade Math » Unit: Geometry
Diane Siekmann
Phoenix, AZ
Environment: Urban
 
Big Idea:

The three types of angles, right, acute, and obtuse, exist in our everyday surroundings. Students find these angles using classroom items.

 
Favorites (4)
 
Resources (10)
 
Reflections (1)
angles
   

Angle Types

5th Grade Math » Unit: Targeted Skills Interventions
5th Grade Math » Unit: Targeted Skills Interventions
Erin Doughty
Grand Rapids, MI
Environment: Urban
 
Big Idea:

Tangled in angles!

 
Favorites (2)
 
Resources (9)
classroom
   

Tangrams with Grandfather Tang

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

Creating rich tasks through integrating literature, positive interactions, and kinesthetic tasks when exploring geometric two dimensional shapes.

 
Favorites (23)
 
Resources (21)
 
Reflections (1)
labeling the tangram shape example
   

Geometry Line Vocabulary

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

The more students are exposed to new vocabulary the more they will use it and retain it.

 
Favorites (2)
 
Resources (26)
 
Reflections (2)
lines vocab1
   

Triangle Types

5th Grade Math » Unit: Geometry
5th Grade Math » Unit: Geometry
Erin Doughty
Grand Rapids, MI
Environment: Urban
 
Big Idea:

Not all triangles are created equil...lateral!

 
Favorites (5)
 
Resources (10)
 
Reflections (1)
triangle illustration
Common Core Math
 
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