Videos, examples, solutions, and lessons to help Grade 5 students learn how to find the area of rectangles with whole-by-mixed and whole-by-fractional number side lengths by tiling, record by drawing, and relate to fraction multiplication.
New York State Common Core Math Module 5, Grade 5, Lesson 10
Common Core Standards: 5.NF.4b, 5.NF.6
Lesson 10 Concept Development
We want to determine the areas of some mystery rectangles.
Lesson 10 Problem Set
Sketch the rectangles and your tiling. Write the dimensions and the units you counted in the blanks. Then use multiplication to confirm the area. Show your work.
6. The rectangle to the right is composed of squares that measure 2 1/4 inches each side. What is its area in square inches? Explain your thinking using pictures and numbers.
7. A rectangle has a perimeter of 35 1/2 feet. If the width is 12 ft, what is the area of the rectangle?
(homework) 3. A garden box has a perimeter of 27 1/2 feet. If the length is 9 feet, what is the area of the garden box?
Lesson 10 Homework
Try the free Mathway calculator and
problem solver below to practice various 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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