Lesson 6

Classifying Shapes

Est. Class Sessions: 2–3
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Mathematical Standards

5.G.A
Graph points on the coordinate plane to solve real-world and mathematical problems. (5.G.A.1, 5.G.A.2)
5.G.B
Classify two-dimensional figures into categories based on their properties. (5.G.B.3, 5.G.B.4)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP3.
Construct viable arguments and critique the reasoning of others.
MP5.
Use appropriate tools strategically.
MP6.
Attend to precision.
MP7.
Look for and make use of structure.

Students classify polygons and justify those classifications based on geometric properties in the context of designing a “shapes zoo.”

Content in this Lesson

  • Identifying and describing two-dimensional shapes [E4].
  • Classifying two-dimensional shapes in a hierarchy based on properties [E5].
  • Justify conclusions using geometric properties [E7].
  • Using precise language.
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide
Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

  • scissors
  • large piece of paper
  • tape or glue stick
  • markers or crayons
  • envelope of resealable bag to store shapes

Materials for the Teacher

Assessment in this Lesson

Assessment Expectation Assessed Math Practices Expectation Assessed

Classifying Shapes
Check-In: Questions 9–10
Student Guide
Page 285
E4.
Identify and describe two-dimensional shapes.
E5.
Classify two-dimensional shapes in a hierarchy based on properties.
E7.
Justify conclusions using geometric properties.

Parallelogram Classification Challenge
with Feedback Box
Student Activity Book
Pages 255–260
E4.
Identify and describe two-dimensional shapes.
E5.
Classify two-dimensional shapes in a hierarchy based on properties.
E7.
Justify conclusions using geometric properties.
MPE5.
Show my work. I show or tell how I arrived at my answer so someone else can understand my thinking.