3.G.A.1

Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.

 
22 Lesson(s)
   

Polygons: Introduction & Investigation

3rd Grade Math » Unit: Geometry in Architecture
3rd Grade Math » Unit: Geometry in Architecture
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Interacting with polygons and testing the definitions can be engaging, fun and build a powerful, individualized understanding. (Lesson updated: January 6, 2015)

 
Favorites (11)
 
Resources (13)
 
Reflections (1)
concave pentagon
   

Finding Rectangles

1st Grade Math » Unit: Shapes, Blocks, and Attributes
1st Grade Math » Unit: Shapes, Blocks, and Attributes
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Students will look for as many rectangles as they can from a given set of shapes. The students will find as many solutions as they can.

 
Favorites (6)
 
Resources (14)
 
Reflections (1)
lesson image
   

Searching for Shapes in Architecture (Day 1)

3rd Grade Math » Unit: Geometry in Architecture
3rd Grade Math » Unit: Geometry in Architecture
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Learning the names and attributes of polygons while looking at buildings of the world will make them unforgettable!

 
Favorites (8)
 
Resources (27)
waldespirale
   

Quadrilateral Or Parallellogram?

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

Students discover the differences between quadrilaterals and parallelograms with everyday items found in the classroom.

 
Favorites (4)
 
Resources (9)
 
Reflections (1)
train tracks
   

Great Buildings of the World: Create Your Own! (Day 1)

3rd Grade Math » Unit: Geometry in Architecture
3rd Grade Math » Unit: Geometry in Architecture
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Creating their own building is a hands-on, minds-on way for students to explore how polygons create 3D solids.

 
Favorites (7)
 
Resources (19)
 
Reflections (1)
40sia siena  piazza del campo palazzo pubblico
   

How Can I Find Similar Attributes ?

3rd Grade Math » Unit: Geometry
3rd Grade Math » Unit: Geometry
Sarah Maffei
Environment: Urban
 
Big Idea:

Shapes fit into all kinds of categories!

 
Favorites (11)
 
Resources (12)
 
Reflections (1)
shapes2b
   

Creating a Summer Review Packet (Day 1)

3rd Grade Math » Unit: Review Activities
3rd Grade Math » Unit: Review Activities
Michelle Marcus
Troy, MI
Environment: Suburban
 
Big Idea:

Students that can write their own story problems, and create math situations that require thought and perseverance to solve, are students that understand. This engaging activity reviews all of the third grade concepts and creates a review packet as well!

 
Favorites (4)
 
Resources (8)
 
Reflections (1)
summer
   

What Makes a Shape? Analyzing and Script Writing

3rd Grade Math » Unit: Going Batty Over Measurement and Geometry
3rd Grade Math » Unit: Going Batty Over Measurement and Geometry
Michelle Marcus
Troy, MI
Environment: Suburban
 
Big Idea:

Students will use the bat houses we built as examples of various quadrilaterals.

 
Favorites (2)
 
Resources (9)
 
Reflections (1)
quadrilateral chart
   

Jeopardy Review

3rd Grade Math » Unit: More Problem Solving Practice
3rd Grade Math » Unit: More Problem Solving Practice
Sarah Maffei
Environment: Urban
 
Big Idea:

Games make problem solving fun and exciting.

 
Favorites (6)
 
Resources (10)
 
Reflections (1)
single jeopardy game board 1
   

Great Buildings of the World: Create Your Own! (Day 2)

3rd Grade Math » Unit: Geometry in Architecture
3rd Grade Math » Unit: Geometry in Architecture
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Creating their own building is a hands-on, minds-on way for students to explore how polygons create 3D solids.

 
Favorites (5)
 
Resources (22)
 
Reflections (1)
great bldg day 2 lesson image8450
   

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
   

Polygons - Explore the Possibilities

3rd Grade Math » Unit: Geometry in Architecture
3rd Grade Math » Unit: Geometry in Architecture
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Online drawing programs allow students to explore many possibilities with polygons!

Standards:
 
Favorites (5)
 
Resources (13)
 
Reflections (1)
rotated polygon texample net
   

2D & 3D Shapes

3rd Grade Math » Unit: Geometry
3rd Grade Math » Unit: Geometry
Sarah Maffei
Environment: Urban
 
Big Idea:

Real world examples help make the attributes of these shapes less abstract.

Standards:
 
Favorites (4)
 
Resources (18)
 
Reflections (1)
2d 3d shapes
   

Geometry Shape Book

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

Students develop their understanding of the importance of different 2-dimensional shapes by finding real world examples.

 
Favorites (1)
 
Resources (9)
 
Reflections (1)
eiffel
   

Great Buildings of the World: Create Your Own! (Day 3)

3rd Grade Math » Unit: Geometry in Architecture
3rd Grade Math » Unit: Geometry in Architecture
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Creating their own building is a hands-on, minds-on way for students to explore how polygons create 3d solids.

 
Favorites (5)
 
Resources (18)
 
Reflections (1)
great bldg day 3 8452
Common Core Math
 
Something went wrong. See details for more info
Nothing to upload
details
close