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Perimeter

Page history last edited by Sergio Perez 11 years, 7 months ago

Perimeter

 Topic(s):

Perimeter

Images/Video Resources

Fences go around a garden to protect the plants from animals.

Photo retrieved from http://flic.kr/p/bnj3C3.

 

 

 The perimeter of this picture can be found by measuring the wooden frame.  Photo retrieved from http://flic.kr/p/8vZru2.

   

 

 

 

 

 

Perimeter video

 

 

 

 

Scenario

 

The U.S. Consumer Product Safety Commission has estimated that each year 300 children under the age of five drown in swimming pools.  Sixty-five percent of the children drowned in an immediate family member's pool and thirty-three percent occured in a relative's or friend's pool.  Seventy-seven percent of the drowning victims were missing for five minutes or less.  The use of a pool fence would have reduced the number of drownings.

 

Your team will need to design

 

 

Think about your neighborhood and the houses that are built there. Do any of these houses have a fence built around them? In order to build those fences somebody had to measure the distance around the yard that has a fence. This measurement is called the perimeter. Architects and construction workers use these measurement everyday.

 

 

Perimeter Paul

by Mr. R

Perimeter Paul,
Wanted to play,
In his backyard,
What can I say?
Out in the back,
Under a tree,
He found a green
bottle,

And 2 more,

That's 3!!!

Bottles all filled,
With green
syrup stuff,
Drank them all up,
"That wasn't enough!!!"
Drinking the liquid?
Not very wise!
Paul woke up,
What changed,
Was his size...
Went to his house,
Tried the front door,
Couldn't squeeze in,
Not anymore...


Paul circled around,
Outside of his home,
The house? It had shrunk,
Or Paul, he had grown...
Around, around,
No way to get in,
Stuck on the outside,
Paul couldn't win!!!
The drink he had drank,
And this won't make sense,
Changed Perimenter Paul,
Into a fence...

And from that day on,
Life was real hard,
Paul was the distance,
Around his back yard... 

 

 

Task

Sample Investigations/Teacher Resources

Your group will need go around the school and find examples of perimeter.  Once you have found five ways perimeter was used your group wil need to investigate two ways in how peimeter was used.  You will need to develop a two-dimensional model in the examples your group chooses to invesigate. 

 

Our school jut received a new playground set this year.  The principal would like for a white wooden picket fence to be built around this new playground.  You will need to research what is needed to build a fence.  The school district will have employees from the Maintenance Department build the fence so our school will not need to pay for labor.  You will need to create a presentaion that shows a diagram of the fence with dimensions.  It will also need to include all of the materials that need to be purchased and their cost.   Your research will help the principal determine if the fence should be built. 

 

 

 

 

 

Student Resources

 

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http://www.doityourself.com/stry/h2woodfence 

http://www.mathgoodies.com/lessons/vol1/perimeter.html

http://metal.brightcookie.com/1_calc/calc_t2/htm/calc2_2_4.htm

http://www.shodor.org/interactivate/activities/PerimeterExplorer/

http://www.mathplayground.com/area_perimeter.html

http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/perimeter_and_area/index.html

http://www.funbrain.com/poly/index.html 

 

 

 

Product Details

Perimeter and Area at the Amusement Park

by Dianne Irving (Jan 2, 2011

 

 

Product Details

Where We Play Sports:  Measuring the Perimeters of Polygons

by Greg Roza (Jan 2004)

 

 

 

Student Work

Standards

1. List your personal understanding, ideas or hunches.

Now that you are familiar with perimeter you will write everything you know about perimeter. Describe your thoughts or ideas about how to solve the problem. There are not incorrect answers in this step, just feel free to brainstorm your ideas.

 

2. List what is known.

With your team use all the information available in the scenario to list everything that you know about perimeter. You do not have to conduct any research yet. Just use the information given and write the facts that you already know about perimeter.

3. List what is unknown.

With your team, make a list about what you do not know and would like to learn. List all the questions you will need to answer to solve the problem.

 

4. List what needs to be done.
"What should we do?" List actions to be taken, e.g., question an expert, conduct research, go to a board meeting about topic. List possible actions.

 

5. Develop a problem statement.

You will be responsible for thinking and choosing one of the questions to solve the problem. A problem statement should come from your analysis of what you know. In one or two sentences, you should be able to describe what it is that your group is trying to solve, produce, respond to, or find out. The problem statement may have to be revised as new information is discovered and brought to bear on the situation.

6. Gather information

Use all the resources available (Internet, library, etc) to research about the problem/topic and find a solution.


7. Present Findings

You will need to create a presentation using Spicynodes.  The presentation must include the following:

1.  Diagram of the fence with dimensions

2.  Cost of lumber

3.  Cost of paint

4.  Cost of concrete

5.  Cost of nails 

 


4.11 (A) estimate and use measurement tools to determine length (including perimeter), area, capacity and weight/mass using standard units SI (metric) and customary;

 

4.14 (A) identify the mathematics in everyday situations;

 

4.14 (B) solve problems that incorporate understanding the problem, making a plan, carrying out the plan, and evaluating the solution for reasonableness;

 

4.14 (C) select or develop an appropriate problem-solving plan or strategy, including drawing a picture, looking for a pattern, systematic guessing and checking, acting it out, making a table, working a simpler problem, or working backwards to solve a problem; and

 

4.14 (D) use tools such as real objects, manipulatives, and technology to solve problems.

Examples of Perimeter retrieved from http://www.slideshare.net/terence87222/examples-of-perimeter

Perimeter image retrieved from http://www.mathhiker.com/archives/1661

Youtube video retrieved from http://youtu.be/KwXBMGdSWmI

Perimeter Paul poem retrieved from http://mathstory.com/poems/perimeterpaul.aspx 

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