Area of Rooms
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Lesson Plans and Worksheets for Grade 3
Lesson Plans and Worksheets for all Grades
Common Core For Grade 3
More Lessons for Grade 3 Math
Examples, solutions, and videos to help Grade 3 students learn how to apply knowledge of area to determine areas of rooms in a given floor plan.
Common Core Standards: 3.MD.6, 3.MD.7a, 3.MD.7b, 3.MD.7c, 3.MD.7d, 3.MD.5
New York State Common Core Math Grade 3, Module 4, Lesson 15, Lesson 16
Lesson 15 Application Problem
Anil finds the area of a 5 inch by 17 inch rectangle by breaking it into 2 smaller rectangles. Show one way that he could have solved the problem. What is the area of the rectangle?
Note: This problem reinforces the strategy of breaking a larger shape apart into 2 smaller shapes to find the total area.
Lesson 15 Concept Development
Use a floor plan to find the area in square centimeters of each room in the house.
Lesson 15 Homework
Use a ruler to measure the side lengths of each lettered room in centimeters. Then find the area. Use the measurements below to match and label the rooms with the correct areas.
Kitchen - 28 square centimeters, Garage - 72 square centimeters
Porch - 32 square centimeters, Bedroom - 56 square centimeters
Bathroom - 24 square centimeters, Hallway - 12 square centimeters
Lesson 16 Application Problem
Find the areas of the large rectangle and the unshaded rectangle. Then subtract to find the area of the shaded region.
Lesson 16 Concept Development
Create a floor plan with different side lengths for given areas.
Review strategies to find new side lengths of given areas.
Lesson 16 Homework
Jeremy plans and designs his own dream playground on grid paper. His new playground will cover a total area of 72 square units. The chart shows how much space he gives for each piece of equipment, or area. Use the information in the chart to draw and label a possible way Jeremy can plan his playground.
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