Lesson plan

3. Apply transformations to complete a puzzle (A)

teaches Common Core State Standards CCSS.Math.Content.8.G.A.2 http://corestandards.org/Math/Content/8/G/A/2
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Lesson objective: Describe single transformations in the coordinate plane.

This lesson provides an opportunity for students to apply their knowledge and understanding of transformations and the coordinate plane to a mathematical situation. Students are asked to identify single transformations used to complete a pattern.

Key Concept students will use:

• A two-dimensional figure is congruent to another if we can describe a sequence of reflections, rotations, or translations on the first that produces the second.

Skills students will use:

• identifying transformations in the coordinate plane
• describing transformations in the coordinate plane

Students engage in Mathematical Practice 8 (look for and express regularity in repeated reasoning) as they decide which transformations were used to transform the figures in creating the pattern.

Key vocabulary:

• center of rotation
• line
• line of reflection
• origin
• point
• reflect
• rotate
• translate

Special materials needed:

• patty paper (optional)
• transparency and wet or dry-erase markers (an optional alternative to patty paper)