Gold Seal Lesson:
You Need A Front Porch

Copernicus Education Gateway

 

Subject:

Mathematics

Grade:

 

 

9-12

 

 

ICLE Standards:

 

 

  • Resources - identify, organize, plan, and allocate resources
  • Interpersonal - work with others
  • Information - acquire and use information
  • Systems - understand complex inter-relationships
  • Technology - work with a variety of technologies
  • Basic Skills - read, write, perform mathematical operations, listen, and speak
  • Thinking Skills - think creatively, make decisions, solve problems, and visualize
  • Personal Qualities - display responsibility, self-esteem, sociability, and self-management

 

 

Performance Task:

 

 

Angie is a senior drafting student at a local technical center. When visiting her grandfather, he asked Angie for advice on how he could keep his house cooler during the summer. The southwest exposure causes the house to become very hot in summer afternoons.  Angie suggested that they build a front porch with a shed roof to shade the front of the house during the afternoon and give her grandparents a place to relax in the evenings. Angie offered to draw some plans. 

In this activity, students will use a CAD system to design a front-porch addition to an existing dwelling. The drawing must be rendered using an architect's scale and meet all local building code rules and regulations. The students will prepare a mill list that could be used by a contractor to estimate the cost of building materials.

Procedure:

  1. Students will render a scale drawing of a front and side elevation of a ranch style house with an 8' by 50' porch addition to the front of the house. The original structure measures 50 feet in length and 28 feet in width. The pitch of the roof on the original structure is a 4-inch rise per linear foot (4-12). The eve of the house measures 16 inches. The exterior walls are covered with 6" weather board siding. The floor level of the house is 2 feet from level ground. Other dimensions are listed below.

Front Elevation Measurements: All measurements for the front elevation are measured from the left front corner.

  • 60" by 54" double window - 7' from the left corner

  • 5' by 2' front wall offset 19' from the left corner (a 36" by 68" door is in the center of the offset)

  • 60" by 54" double window - 28' 6" from the left corner

  • 60" by 54" double window - 41 ' 8" from the left corner

Left Side Elevation Measurements: All measurements for the left side elevation are measured from the right corner.

  • 32" by 48" window 5' 8" from the right corner

  • 24" by 38" window 12' 8" from the right corner

  • 32" by 48" window 19 ' 8" from the right corner

  1. Students will select the appropriate architect's scale depending of the size of the completed drawing.

  2. The porch deck can be constructed with reinforced concrete or tongue and grove flooring.

  3. Porch posts must be 6" and spaced according to proportion, space, requirements of the local building code.

  4. Students may add enhancements such as banisters and post supports as they want. The type of door and windows is left to the discretion of the designer but must complete the chosen architectural style.

  5. The porch must have a minimum of a 3-foot slope and will be covered with shingles.

  6. Students must include the entire front roof, including the porch in their materials list. 

 

 

Knowledge / Skills:

 

 

Perform operations with signed (positive and negative) numbers, including decimals, ratios, percents, and fractions. M.1

Compute the perimeter and area of two-dimensional figures. M.13

Use the technique of dimensional analysis to convert units of measure (e.g., convert km/hr to m/min). Understand and use various techniques for estimating, making and converting measure; and using these to perform dimensional analysis. M.33

Understand and produce a variety of informative formats such as business letters, memos, reports, news articles, brochures, proposals and critiques. ELA.22

Apply reading skills while reading textbooks in courses other than English. ELA.26

 

 

Rubric:

 

 

4 POINTS: Excellent: The student worked above minimum requirements of the assignment and demonstrated mastery of the subject, topic, or principle with little or no help or coaching.

 

 

3 POINTS: Very good: The student worked above minimum requirements of the assignment and demonstrated mastery of the subject, topic, or principle with some coaching and help.

 

 

2 POINTS: Good but needs improvement: The student met only the minimum requirements of the assignment. He or she did not demonstrate mastery of the subject, topic, or principle and needed considerable coaching and help. 

 

 

1 POINTS: Poor: The student did not meet the minimum requirements for the assignment even with considerable coaching and extra help.


The student selects the appropriate scale, according to the size of the drawing, to shows the details of the structure. 

The student reads the appropriate manuals, building codes, etc. to render an attractive working drawing and materials list. 

The student creates a drawing with the addition that is compatible with the existing architectural style. 

The student allocates time and follows a schedule that considers contingencies. 

The student interprets written information and instructions concerning the project and clearly communicates the information in working drawings and materials list. 

The student uses a computer to process information and develop drawings. 

 

 

Keywords:

 

 

ALGEBRA
TECHNICAL WRITING 
MEASUREMENT
TECHNOLOGY INTEGRATION
COMPUTATION
COST ANALYSIS
BUDGET

 

 

Grades:

 

 

Kg [] - 1 [] - 2 [] - 3 [] - 4 [] - 5 [] - 6 [] - 7 [] - 8 [] - 9 [X] - 10 [X] - 11 [X] - 12 [X]

 

 

ICLE Application:

 

 

D

 

 

 

 

 

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