Lesson 3

Workshop: Area and Perimeter

Est. Class Sessions: 1–2
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Mathematics Standards

4.MD.A
Solve problems involving measurements and conversion of measurements. (4.MD.A.3)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason abstractly and quantitatively.
MP4.
Model with mathematics
MP7.
Look for and make use of structure.
MP8.
Look for and express regularity in repeated reasoning.

Students solve problems in small groups to practice the area and perimeter concepts explored in this unit.

Content in this Lesson

  • Recognizing and generalizing geometric relationships in problems involving the area and perimeter of rectangles and irregular shapes [E4].
  • Finding the perimeter of rectangles and irregular shapes by counting units and adding [E6].
  • Finding the area of rectangles and irregular shapes by counting [E7].
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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

12 square-inch tiles

Materials for the Teacher

Unit 2 Assessment Record
Math Facts Class Record

Materials Preparation

Make Digit Cards. Make a set of Digit Cards 0–9 using index cards, a deck of playing cards, or the Digit Cards 0–9 Masters. If using playing cards, the ace can stand for 1 and a face or joker card can stand for zero. These cards will be used to play a game in DPP items N and P.

Assessment in this Lesson

Assessment Expectation Assessed
Workshop: Area and Perimeter
Self-Check: Questions 1–3

Student Guide
Pages 61–62
E4.
Recognize and generalize geometric relationships in problems involving the area and perimeter of rectangles.
E6.
Find the perimeter of rectangles and irregular shapes by counting units and adding.
E7.
Find the area of rectangles and irregular shapes by counting, and adding or multiplying.
Area and Perimeter Practice
Questions 3, 6, and 7

Student Activity Book
Pages 25, 29, and 30
E4.
Recognize and generalize geometric relationships in problems involving the area and perimeter of rectangles.
E6.
Find the perimeter of rectangles and irregular shapes by counting units and adding.
E7.
Find the area of rectangles and irregular shapes by counting, and adding or multiplying.
DPP Item M Subtraction Facts Quiz: Count Backs
Teacher Guide - digital
E8.
Demonstrate proficiency with the subtraction facts.

Vocabulary in this Lesson