8.G.A.3

Describe the effect of dilations, translations, rotations and reflections on two-dimensional figures using coordinates.

 
34 Lesson(s)
   

The Number Line Project, Part 2: Two Dimensional Number Lines

Algebra I » Unit: The Number Line Project
Algebra I » Unit: The Number Line Project
James Dunseith
Worcester, MA
Environment: Urban
 
Big Idea:

The mathematical structures we build today will be used to justify many algebraic ideas in the coming months.

 
Favorites (42)
 
Resources (25)
 
Reflections (2)
u1 l16 part 2a setup
   

Playing with Parabolas - Hands on

8th Grade Math » Unit: Advanced Equations and Functions
8th Grade Math » Unit: Advanced Equations and Functions
Mauricio Beltre
Orlando, FL
Environment: Urban
 
Big Idea:

Students become acquainted with simple quadratic equations! They graph and explore parabolas and gain their first experiences with quadratic function vocabulary and transformations.

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

Exploring Dilations 2

8th Grade Math » Unit: Congruence and Similarity
8th Grade Math » Unit: Congruence and Similarity
Mauricio Beltre
Orlando, FL
Environment: Urban
 
Big Idea:

With scale factors and distances on the coordinate plane, students dilate pre-images.

 
Favorites (26)
 
Resources (11)
dilations 2
   

Exploring Reflections 2

8th Grade Math » Unit: Congruence and Similarity
8th Grade Math » Unit: Congruence and Similarity
Mauricio Beltre
Orlando, FL
Environment: Urban
 
Big Idea:

Students see that the image of a figure can be found by locating the images of enough points to determine the figure.

 
Favorites (7)
 
Resources (13)
 
Reflections (1)
copytown
   

Introduction to congruence and similarity through transformations

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Which one of these is not like the other? Investigate how Sesame Street is connected to congruence and similarity.

 
Favorites (29)
 
Resources (16)
8 1 image
   

Translations 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Set the foundation for students' knowledge of and fluency with translations.

 
Favorites (14)
 
Resources (17)
 
Reflections (1)
8 2 image translations 1 resized
   

Rotations 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Set the foundation for students' understanding of rotations about the origin - link it to tether ball!

 
Favorites (11)
 
Resources (15)
8 7 image tether ball
   

Dilations 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Biggie or Smalls? Set the foundation for students' understanding of dilations, and use Geogebra to illustrate.

 
Favorites (16)
 
Resources (15)
8 11 image dilations 1 resized
   

Mixed Review - Transformations

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Deepen students' understanding by putting together the last 8 days of learning into one day. Incredibly important to consolidate their understanding before moving on!

 
Favorites (5)
 
Resources (19)
 
Reflections (2)
8 9 image transformations review resized
   

Rotations 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Get kids fluent in rotations by providing them with a lot of independent practice with rotations!

 
Favorites (5)
 
Resources (15)
8 8 image rotations 2 resized
   

Reflections 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Use geomirrors to set the foundation for students' understanding of reflections, only across the axes.

 
Favorites (8)
 
Resources (15)
8 4 image geomirrors
   

Reflections 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Can you reflect objects without the geomirrors? Push kids to apply the idea of equal distance from the line of reflection.

 
Favorites (6)
 
Resources (15)
8 5 image reflections 2 resized
   

Dilations 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Biggie or Smalls? Continue setting the foundation for students' understanding of dilations.

 
Favorites (9)
 
Resources (15)
8 12 image dilations 2 resized
   

Mixed Review - Transformations

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Consolidate students' knowledge of and fluency with transformations by reviewing the first 16 days of the unit. Incredibly important to ensure student retention!

 
Favorites (4)
 
Resources (15)
8 17 image mixed transformations review resized
   

Translations 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Continue building students' facility with translations with a second day, tackling translations in different ways.

 
Favorites (8)
 
Resources (16)
 
Reflections (1)
8 3 image translations 2 resized
Common Core Math
 
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