Lesson 4

Helipads for Antopolis

Est. Class Sessions: 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.
MP3.
Construct viable arguments and critique the reasoning of others.
MP5.
Use appropriate tools strategically.
MP7.
Look for and make use of structure.

Students design helipads for the Antopolis Airport and determine which helipad has the maximum area. They also explain how they know they have found the design with the largest area.

Content in this Lesson

  • Recognizing and generalizing geometric relationships in problems involving the area and perimeter of rectangles [E4].
  • Making rectangles with a given area or perimeter [E5].
  • Finding the perimeter of rectangles by counting inches and adding [E6].
  • Finding the area of rectangles by counting, adding, or multiplying square inches [E7].
  • Communicating strategies and solutions in problem solving [MPE5].
  • Checking solutions for reasonableness [MPE4].
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide    

Teacher Resources

 Teacher Guide - digital

Supplies for Student Groups

24-inch piece of wire, string, or chenille stem
50 square-inch tiles
rulers
tape, optional

Materials for the Teacher

Display of Square-Inch Grid Paper (Lesson 1 Teacher Guide)
Display of Math Practices page (Student Guide) Reference
Unit 2 Assessment Record
Unit 2 Individual Assessment Record
Math Facts Class Record
square-inch tiles for the display

Materials Preparation

Prepare Wire. Cut pieces of wire or string approximately 24 inches long for each student group in your classroom. Twist ties that are twenty-four inches long work well for this activity. They are sometimes available in bulk in garden stores.

Assessment in this Lesson

Assessment Expectation Assessed Math Practices Expectation Assessed
Helipads for Antopolis
Peer Review
Question 4E
Student Guide
Page 64 		 
MPE4.
Check my calculations. If I make mistakes I correct them.
MPE5.
Show my work. I show or tell how I arrived at my answer so someone else can understand my thinking.
MPE6.
Use labels. I use labels to show what numbers mean.
Helipads for Antopolis
Check-In:
Question 5
Student Guide
Page 64
with the corresponding Feedback Box Teacher Guide - digital
E4.
Recognize and generalize geometric relationships in problems involving the area and perimeter of rectangles.
E5.
Make shapes (polygons) with given measurements (width, perimeter, or area).
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, adding, or multiplying.
MPE4.
Check my calculations. If I make mistakes I correct them.
MPE5.
Show my work. I show or tell how I arrived at my answer so someone else can understand my thinking.
MPE6.
Use labels. I use labels to show what numbers mean.
DPP Item Q Subtraction Facts Quiz: Using Tens
Teacher Guide - digital
E8.
Demonstrate fluency with the subtraction facts.
  
DPP Item S Subtraction Facts Quiz: Doubles and Others
Teacher Guide - digital
E8.
Demonstrate fluency with the subtraction facts.
  
Home Practice
Part 7
Teacher Guide - digital
E1.
Make a point graph.
E2.
Read a table or graph to find information about a data set.
E3.
Model real-world situations with tables and point graphs.
  

Vocabulary in this Lesson