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Lesson Plans and Worksheets for Grade 3

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More Lessons for Grade 3

Common Core For Grade 3

Videos, examples, solutions, and lessons to help Grade 3 students learn how to draw rows and columns to determine the area of a rectangle, given an incomplete array.

Common Core Standards: 3.MD.5, 3.MD.6, 3.MD.7a, 3.MD.7b, 3.MD.7d

New York State Common Core Math Module 4, Grade 3, Lesson 6

Application Problem

Huma has 4 bags of square-inch tiles with 6 tiles in each bag. She uses them to measure the area of a rectangle on her homework. After covering the rectangle, Huma has 4 tiles left. What is the area of the rectangle?

Note: This problem reviews multi-step word problems in the context of using square tiles to measure area.

Concept Development

Part 1: Estimate to draw the missing square units inside an array.

Part 2: Draw rows and columns to determine the area.

Lesson 6 Homework

- Each □ represents a 1-cm square. Draw to find the number of rows and columns in each array. Match it to its completed array. Then fill in the blanks to make a true equation to find each array area.
- Minh skip-counts by sixes to find the total square units in the rectangle below. She says there are 36 square units. Is she correct? Explain your answer.
- The tub in Paige bathroom covers the tile floor as shown below. How many square tiles are on the floor, including the tiles under the tub?
- Frank sees a book on top of his chessboard. How many squares are covered by the book? Explain your answer.

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