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Copy of Saws, Drill Bits and Inches 1

Page history last edited by Valree Martinez 11 years, 8 months ago

Saws, Drill Bits and Inches

 Topics:

                              Geometry and Measurement:

A comparison of Two and Three Dimensional Figures

 

 

Images/Video Resources 

 

Watch the following video to learn more about finding a solution to the scenario presented above. In light the problem requires a solution that employs the use of some tools. Your job is figure out what tools, methods, are need to come up with a solution. You want to provide the solution to others and want to communicate that solution successfully. Therefore, you must be very knowledgeable and familiar about the processes that will be used in order to provide the solution.

 

Watch the video at the right to get a closer look at door knob interviewing? According to Meagan "Door hardware is the handshake of the home. It is the first thing that greets you and it tells you a lot about what you are going to see inside."

Meagan also states;"It is a quest for beauty, function, and of course, inspiration. How should somebody decide what of a door hardware they want?" 

Keep in mind the Solis Family, what characteristics have prompted them change their old door knobs to a lever?  Be sure to catch the reasoning behind the decision. You want to be able to describe their new situation in their home that have prompted to be smarter about their choices of door hardware. Might the Solis Family have to give durability, fashion, beauty in their selection of door hardware? Find out what Meagan investigates in her door hardware interview.

Provided by Answers.com Retrieved July 29.2012

http://video.answers.com/how-to-select-door-hardware-62642828

 

  

Scenario

 

 

Like many senior citizens across the U.S  the Solis family would like to update the doorknobs throughout their house. Most of the doorknobs are really old ( the glass globe style). The Solis's confirm that some of the doorknobs are starting to fail.

 

Specifically the doorknob is slipping through their hands as they turn. They also state that even some of the newer brass door knobs they installed have already tarnished.The Solis family would like to use this opportunity to change all the doorknobs to a lever handle. The lever handles are easier to operate and (ADA compliant).

 

The problem is the cutout in the old doors is too small. It's about a 1'' diameter, and they need a 2 and 1/8.''  The issue of complaint is that because the existing hole bit is present, they can not center a new cut, which is what they need. How can the Solis Family keep the hole saw centered as they cut through the new hole?

 

Scroll through the rest of the lesson in order to develop a solution to this problem.

 

Task

Sample Investigations/Teacher Resources

Basic Task

1. What is the typical door knob hole size today?

2. What is ADA compliant?

3. What would an old doorknob look like?

4. What is the difference in inches from a standard old hole to the new hole?

5. How many tools would you need to get the job done the easiest way?

6. List the tools you need?

7. What is the difference in terms of measurement (height, width, length) between the old doorknob that is not ADA complaint and a new doorknob that is ADA complaint?

8. Make an inference about the difference in volume between an old doorknob and a new doorknob?

9. Make an inference about the difference in surface are between an old doorknob and a new doorknob?

10. Using proper measuring provide a reasonable solution for questions 8 and 9. 

Expectations

 

Your role is to investigate a possible solution to the problem presented in the scenario. Individually complete the basic tasks listed above then begin the PBL steps. Your findings will be presented to the city community affairs department that will impact current local iniatives.

 

 

To become more familiar with state and local policies regarding people with disabilities several articles have been provided. Find out where the proper placement of a door knob should, the shape, the mechanism and concerns regarding deadbolts are for people with disabilities. 

http://www.ehow.com/list_6815207_california-handicapped-door-latch-requirements.html 

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In reading the scenario, the Solis Family has already removed the old doorknob.  And might not be so knowledgeable about installing the next one. A question to consider, do you yourself have the prior knowledge and are familiar with what those processes look like? It might be comforting to know that you are familiar with removing a door knob and installing new hardware. This video link provides you with an opportunity to learn about these two tasks.  Keep in mind though this video does not provide a solution to our problem, this only provides a background of what the Solis Family has accomplished and what lies ahead of them.

 

value='http://embed.5min.com/517347500/&sid=813/'/>

 

Student Resources

 Rubric

 

 

Resources

 

Subtracting Mixed Numbers

http://youtu.be/sIPGOzyTpbY

Surface Area and Volume of a Rectangular Prism

http://math.about.com/od/formulas/ss/surfaceareavol_4.htm

Video Volume of a Rectangular Prism

http://www.5min.com/Video/How-to-Calculate-the-Volume-of-a-Rectangular-Prism-275635425

Surface Area and  Volume of a Sphere

http://math.about.com/od/formulas/ss/surfaceareavol.htm

Video Volume of a Sphere

http://www.brightstorm.com/math/geometry/volume/volume-of-spheres/

Volume of a Sphere Calculator

http://www.basic-mathematics.com/volume-of-a-sphere-calculator.html

 

 

Hole Re-Sizing instructions

http://diy.stackexchange.com/questions/10391/how-do-i-drill-a-2-inch-door-knob-hole-over-an-existing-1-inch-hole

 

 

 

 

 

Individual Reflection Rubric

 

Team Knowledge Building Rubric 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Student Work

Standards

1. Read and analyze the scenario and situation.
Check your understanding of the scenario. Don't be tempted to start thinking about potential solutions or to start looking for information. 

 

1. List your personal understanding, ideas or hunches.

Now that you are familiar with Solis's Family situation you will write everything you know about the involvement of doorknob installation including resizing . 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 choosing a new doorknob and its' implications. You do not have to conduct any research yet. Just use the information given and write the facts that you already know about doorknob installation procedures.

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 wil design a PowerPoint, Prezi, or Sliderocket presenting all gathered information and illustrating your knowlege about your proposed solution.

 

(7.2) Number, operation, and quantitative reasoning. The student adds, subtracts, multiplies, or divides to solve problems and justify solutions.

(B) use additions, subtraction, multiplications, and division to solve problems involving fractions and decimals; 

(F) select and use appropriate operations to solve problems and justify the selections; 

(G) determine the reasonableness of a solution to a problem.

 

(7.6) Geometry and spatial reasoning. The student compares and classifies two-and three-dimensional figures using geometric vocabulary and properties.

(C) use properties to classify three-dimensional figures, including pyramids, cones, prisms and cylinders;

 

(7.8) Geometry and spatial reasoning. The student uses geometry to model and describe the physical world.

(B) make a net (two-dimensional model) of the surface area of a three-dimensional figure; and

(C) use geometric concepts and properties to solve problems in fields such as art and architecture.

 

(7.9) Measurement. The student solves application problems involving estimation and measurement.

The student is expected to:

(A) estimate measurements and solve application problems involving length (including perimeter and circumference) and area of polygons and other shapes;

(B) connect models for volume of prisms (triangular and rectangular) and cylinders to formulas of prisms (triangular and rectangular) and cylinders; and

(C) estimate measurements and solve application problems involving volume of prisms (rectangular and triangular) and cylinders.

 

Scenario contribution. Yahoo Answers.com. Retrieved July 25 .2012. 

Images courtesy of Google images . Retrieved July 27.2012. 

Interview courtesy of Answers.com. Retrieved July 29 .2012.

 

 

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