7.G.A.2

Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle.

 
16 Lesson(s)
   

Triangle Inequality Theorem

7th Grade Math » Unit: Geometric Figures
7th Grade Math » Unit: Geometric Figures
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

Any three sides lengths can't form a triangle? NOPE! Students will use straws of various lengths to investigate this theorem.

 
Favorites (26)
 
Resources (22)
 
Reflections (3)
discovery pic
   

iPhone, iSpy: Cell Phone Triangulation

6th Grade Science » Unit: Forensics
6th Grade Science » Unit: Forensics
Melodie Brewer
Scottsdale, AZ
Environment: Suburban
 
Big Idea:

Cell phones have made communication exponentially easier, and they have done the same for crime investigation!

 
Favorites (8)
 
Resources (17)
 
Reflections (1)
phone
   

Write It Wednesday-Angles

7th Grade Math » Unit: Angles
7th Grade Math » Unit: Angles
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

Can you write about angles?

 
Favorites (1)
 
Resources (9)
pencil
   

Geometric Drawings

7th Grade Math » Unit: Geometric Figures
7th Grade Math » Unit: Geometric Figures
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

Constructions! This lesson is a hands on investigation to what makes a unique triangle.

 
Favorites (34)
 
Resources (15)
 
Reflections (1)
img 0641
   

Math Mysteries!

7th Grade Math » Unit: Introduction to Mathematical Investigations
7th Grade Math » Unit: Introduction to Mathematical Investigations
Malissa Thomas-St.Clair
Columbus, OH
Environment: Urban
 
Big Idea:

With the focal point being on the mathematical practices, student’s will become math detectives searching for evidence to solve mathematical mysteries.

 
Favorites (15)
 
Resources (19)
 
Reflections (1)
math detectives
   

End of Grade Review - Triangle and Angle Relationships

7th Grade Math » Unit: Culminating Unit: End of Grade Review
7th Grade Math » Unit: Culminating Unit: End of Grade Review
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

Students will take a step back and recall all the relationships between angle pairs and triangles.

 
Favorites (12)
 
Resources (15)
 
Reflections (1)
img 0268
   

Geometric Figures Test

7th Grade Math » Unit: Geometric Figures
7th Grade Math » Unit: Geometric Figures
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

Test! Today's lesson allows students to show what they have learned about relationships in geometric figures.

 
Favorites (7)
 
Resources (11)
 
Reflections (1)
img 0640
   

Drawing Prisms & Pyramids

7th Grade Math » Unit: Geometry
7th Grade Math » Unit: Geometry
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

It is empowering and fun to learn how to draw prisms and pyramids.

 
Favorites (4)
 
Resources (12)
 
Reflections (1)
lessonimage draw isometric pyramid inside cube w654
   

Angles Pre-Assessement

7th Grade Math » Unit: Angles
7th Grade Math » Unit: Angles
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

Students reflect on what they know about angles.

Standards:
 
Favorites (2)
 
Resources (5)
angles
   

Angle Vocabulary Introduction

7th Grade Math » Unit: Angles
7th Grade Math » Unit: Angles
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

Students brainstorm vocabulary terms about angles and write definitions of those terms.

Standards:
 
Resources (6)
foldablecover
   

Missing Angles

7th Grade Math » Unit: Angles
7th Grade Math » Unit: Angles
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

Students use known measures of complementary, supplementary, and right angles to find the measure of an unknown angle.

 
Favorites (2)
 
Resources (7)
detective with magnifying glass
   

Angles Everywhere

7th Grade Math » Unit: Angles
7th Grade Math » Unit: Angles
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

What is the difference between supplementary and complementary?

 
Favorites (2)
 
Resources (7)
protractors
   

Triangles Everywhere

7th Grade Math » Unit: Angles
7th Grade Math » Unit: Angles
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

Students use triangles formed by diagonals of a polygon to discover the sum of the measures of the angles inside a polygon.

 
Favorites (1)
 
Resources (7)
triangles everywhere
   

Angle Vocabulary Word Problems

7th Grade Math » Unit: Angles
7th Grade Math » Unit: Angles
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

Students apply their knowledge of angle vocabulary.

 
Favorites (1)
 
Resources (6)
anglewords
   

Angles PostAssessment

7th Grade Math » Unit: Angles
7th Grade Math » Unit: Angles
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

What do you know now that you didn't know then?

 
Favorites (1)
 
Resources (7)
assessment
Common Core Math
 
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