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Area of Rectangles (Grade 5)





 

Videos, solutions, and lessons to help Grade 5 students learn to apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.

A. Interpret the product (a/b) × q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a × q ÷ b. For example, use a visual fraction model to show (2/3) × 4 = 8/3, and create a story context for this equation. Do the same with (2/3) × (4/5) = 8/15. (In general, (a/b) × (c/d) = ac/bd.)

B. Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas.

Common Core: 5.NF.4

Suggested Learning Targets

  • I can create story contexts for problems involving multiplication of fractions and whole numbers or multiplication of two fractions.
  • I can find the area of a rectangle with fractional side lengths


Find area of rectangle with fractional side lengths--Lesson 1 of 5 (Common Core Standard 5.NF.4b)
In this lesson you will learn how to find the area of a rectangle with fractional side lengths by tiling.
Find area of rectangle with fractional side lengths--Lesson 2 of 5 (Common Core Standard 5.NF.4b)
In this lesson you will learn how to find the area of a rectangle with fractional side lengths by tiling an area model and then multiplying.



Find area of rectangle with fractional side lengths--Lesson 3 of 5
In this lesson you will learn how to multiply a fraction by a whole number by using a grid.
Find area of rectangle with fractional side lengths
In this lesson you will find the product of a whole number and a fraction by using area models.


 
Find area of rectangle with fractional side lengths--Lesson 5 of 5
In this lesson you will learn how to find the product of a fraction and a mixed number by using area models.
Find area of rectangle with fraction length and width.


Multiplying Fractions Using an Area Model.
Visualizing fraction multiplication.


 
Multiply Fractions using Rectangle Models.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway widget below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.




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