Lesson 11

Workshop: Shapes and Properties

Est. Class Sessions: 1–2
X

Mathematical Standards

4.G.A
Draw and identify lines and angles, and classify shapes by properties of their lines and angles. (4.G.A.2, 4.G.A.3)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason abstractly and quantitatively.
MP3.
Construct viable arguments and critique the reasoning of others.
MP6.
Attend to precision.

Students further develop their abilities to describe, analyze, and classify two-dimensional shapes by choosing targeted practice from a menu. Students also practice identifying congruent shapes, slides, flips, and turns of shapes. The story “Journey to Flatopia” provides a context for exploring two-dimensional shapes.

Content in this Lesson

  • Describing and analyzing 2-dimensional shapes based on their properties (e.g., number and length of sides, number and size of angles, relationships between sides) [E5].
  • Classifying 2-dimensional shapes using their properties [E6].
  • Identifying line (reflective) symmetry [E7].
  • Identifying congruent shapes [E8].
  • Identifying slides, flips, and turns of shapes [E9].
  • Justifying conclusions using geometric properties [E10].

Daily Practice and Problems EE–FF

EE. Mystery Property

FF. Show Fractions Many Ways

X

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

envelope
ruler
scissors
1 set of Power Polygons™ (Shapes A–O)

Materials for the Teacher

Display of Mosaic Puzzle page (Student Activity Book) Page 377
Display of Sorting Polygons (Student Activity Book) Lesson 10 Page 375
Unit 9 Assessment Record
Math Facts Class Record

Assessment in this Lesson

Assessment Expectation Assessed Math Practices Expectation Assessed

Workshop: Shapes and Properties
Self-Check: Questions 1–3
Student Guide
Page 426
E5.
Describe and analyze 2-dimensional shapes based on their properties (e.g., number and length of sides, number and size of angles, relationships between sides).

Classifying Shapes
Self-Check with menu
Student Activity Book
Page 379
E6.
Classify 2-dimensional shapes using their properties.
E10.
Justify conclusions using geometric properties.

Classifying Shapes
Check-In: Questions 4–5
with Feedback Box
Student Activity Book
Pages 383–384
E5.
Describe and analyze 2-dimensional shapes based on their properties (e.g., number and length of sides, number and size of angles, relationships between sides).
E6.
Classify 2-dimensional shapes using their properties.
E10.
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.

Practice with Shapes and Properties
Self-Check: Questions 1–3
Student Activity Book
Pages 385–386
E7.
Identify line (reflective) symmetry.
E8.
Identify congruent shapes.
E9.
Identify slides, flips, and turns of shapes.