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Reading a floor plan
1. Introduce the concept of a floor plan. Ask students to name various ways a floor plan might be used and list the responses on the board.

2. Go over the basic measurements of inches, feet, and yards and their abbreviations.

3. Show how length and width are measured and recorded, using the floor plan as a guide. Explain that the first measurement is typically the length, the second the width, and the third (when necessary) the height.

4. Discuss the concept of area. Ask students to list some uses for area measurements. Use a few student examples to estimate the size of a house (e.g., a 600-square foot house would be very small, and a 4,000 square foot house would be quite large).

Extension activity
Bring in some sample floor plans. You may be able to find floor plans developed as part of a home inspection conducted on your home or the homes of fellow teachers. Or you can ask a new home builder to send you sample floor plans of houses for sale. Another source for floor plans may be books on building or renovating homes that can be found in your public library. Use these floor plans to make additional practice exercises for your students.

Solve the problems
1. Ask students to solve the problems working independently. Then go over the correct responses on the board.

2. Look in commercial adult basic education math books to find additional practice examples to give to students.

 

Book graphic How to Buy Your Own HomeTable of ContentsGlossaryAnswer KeyFree Resources

Unit 2 : Lesson 1: Deciding what you want

Document literacy: Understanding diagrams and charts

A floor plan

Knowing how to read measurements and how to use them to make calculations is an important skill. When you are shopping for a house, you may receive floor plans of houses for sale, such as the one shown below. These tell you the location, plus the length and width of all the rooms in the house.

Often housing ads will also tell you the area (or floor surface) covered by the house or the size of the lot (the total area of land on which the house is located). These are measured in square feet. Knowing the square feet in a house gives you a good idea of its size and allows you to compare the sizes of different homes.

Once you move in, you’ll also need to make other measurements. You may want to measure the distance from one end of your lot to the other in order to put up a fence. If you want to buy curtains, you’ll have to measure the height and width of your windows. If you decide to put carpet in a room, you’ll have to calculate the square feet you’ll need.

In charts and diagrams using measurements of length, abbreviations are often used. For foot or feet you will see the abbreviation ft. or the symbol ('). For inches, in. or the symbol (") is used. The common abbreviation for yard is yd. The measurement for a room that is 15 feet and 6 inches wide by 11 feet and 3 inches long, for example, might be written like this: 15'6" x 11'3". Usually the length (l) is written first, followed by the width (w), and then, if needed, the height (h): (l x w x h).

To calculate the area (or floor space) of a room, the measurement unit of a square foot is used. To find the area of a room, multiply the length of the room by its width. In the floor plan below, for example, the living room is 20 feet by 18 feet. Its area is 360 square feet.

Working with numbers Printer

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