Mathematics For Elementary Teachers With Activities

5th Edition

ISBN: 9780134423401

Author: Sybilla Beckmann

Publisher: PEARSON

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Textbook Question

Chapter 12.8, Problem 9P

Draw 4 different rectangles, all of which have area 4 square inches. Label your rectangles with their lengths and widths.
Determine the perimeters of each of your rectangles in part (3). Then label your rectangles A, B, C, and D in increasing order of their perimeters, so thatA has the smallest perimeter and D has the largest perimeter among your rectangles.
Qualitatively, how do the smaller-perimeter rectangles you drew in part (a) look different from the largerperimeter rectangles? Describe how the shapes of the rectangles change as you go from the rectangle of smallest perimeter to the rectangle of largest perimeter.

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Chapter 12.8, Problem 8P

Chapter 12.8, Problem 10P

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Chapter 12 Solutions

Mathematics For Elementary Teachers With Activities

Ch. 12.1 - You have a 5-foot-by-7-foot rectangular rug in...Ch. 12.1 - Draw a 3-cm-by-7-cm rectangle. Then discuss the...Ch. 12.1 - a. Explain how to decompose the large rectangle in...Ch. 12.1 - a. Explain how to decompose the large rectangle in...Ch. 12.1 - Draw a (fairly long) line segment and designate it...Ch. 12.2 - Make a shape that has area 25in2 but that has no...Ch. 12.2 - Flgure 12.14 shows the floor plan for a one-story...Ch. 12.2 - An area problem: The Johnsons are planning to...Ch. 12.2 - Figure 12.15 shows a design for an herb garden,...Ch. 12.2 - Figure 12.16 [g shows the floor plan for a modern,...

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