Challenged with a hypothetical engineering work situation in which they need to …
Challenged with a hypothetical engineering work situation in which they need to figure out the volume and surface area of a nuclear power plant’s cooling tower (a hyperbolic shape), students learn to calculate the volume of complex solids that can be classified as solids of revolution or solids with known cross sections. These objects of complex shape defy standard procedures to compute volumes. Even calculus techniques depend on the ability to perform multiple measurements of the objects or find functional descriptions of their edges. During both guided and independent practice, students use (free GeoGebra) geometry software, a photograph of the object, a known dimension of it, a spreadsheet application and integral calculus techniques to calculate the volume of complex shape solids within a margin of error of less than 5%—an approach that can be used to compute the volumes of big or small objects. This activity is suitable for the end of the second semester of AP Calculus classes, serving as a major grade for the last six-week period, with students’ project results presentation grades used as the second semester final test.
Wakelet is a free platform that allows you to save, organize and …
Wakelet is a free platform that allows you to save, organize and share content from across the web. Teachers can share collections directly to Google Classroom. The read mode enables students to have articles translated into 60 languages and apply accessibility tools for text preferences. This session will help you set up and account and demo key features to get started today. presentation: bit.ly/2WAKEWOSU
Together we will explore media literacy resources. We'll dive into a curated, …
Together we will explore media literacy resources. We'll dive into a curated, vast collection of media literacy tools. We'll establish how we can empower our students to be proactive citizens in our digital world. We'll also explore the PBS Media Literacy Educator Certification, a new professional learning opportunity. It is a competency-based certification, earned by completing eight micro-credentials and is a way to demonstrate your expertise and receive validation for your leadership. It's free for all kinds of educators. Live Q & A Doc:
World War II ration memorabilia collection, 1942-1947. The Office of Price Administration …
World War II ration memorabilia collection, 1942-1947.
The Office of Price Administration and Civilian Supply was established by Presidential Executive Order 8734 on April 11, 1941, in an effort to control inflation. The civilian supply function of the agency was transferred to the Office of Production Management in August of 1941 and the name was shortened to the Office of Price Administration (OPA). The Emergency Price Control Act (January 30, 1942) established the purposes of the agency as follows: to stabilize prices and rents and prevent unwarranted increases in them; to prevent profiteering, hoarding and speculation; to assure that defense appropriations were not dissipated by excessive prices; to protect those with fixed incomes from undue impairment of their living standards; to assist in securing adequate production; and to prevent a post-emergency collapse of values." The OPA fixed price ceilings on all commodities except farm products and controlled rents in defense areas. The first rationing program, for automobile tires, was initiated December 27, 1941. There were two types of rationing programs. The first was a certificate program, where an applicant had to meet eligibility standards and show need to a local ration board before receiving a certificate permitting purchase of the rationed item. This type of program was applied to ties, automobiles, typewriters, bicycles, rubber footwear and stoves. The second program was a coupon or stamp type for which all civilians were eligible. These programs were administered through local banks and covered foods, fuel oil, gasoline and shoes. Rationing continued throughout World War II and by the end of November 1945 only the sugar and rubber tire rationing programs remained. Tire rationing ceased on December 31, 1945. Sugar rationing continued until June 11, 1947. The Office of Price Administration was dissolved April 1, 1947.
In this service-learning engineering project, students follow the steps of the engineering …
In this service-learning engineering project, students follow the steps of the engineering design process to design a hearing testing device. More specifically, they design a prototype machine that can be used to test the peripheral vision of partially-blind, pre-verbal children. Students learn about the basics of vision and vision loss. They also learn how a peripheral vision tester for adults works (by testing the static peripheral vision in the four quadrants of the visual field with four controllable lights in specific locations). Then they modify the idea of the adult peripheral vision tester to make it usable for testing young children. The class designs and builds one complete prototype, working in sub-groups of four or five students each to build sub-components of the project design.
What makes rockets fly straight? What makes rockets fly far? Why use …
What makes rockets fly straight? What makes rockets fly far? Why use water to make the rocket fly? Students are challenged to design and build rockets from two-liter plastic soda bottles that travel as far and straight as possible or stay aloft as long as possible. Guided by the steps of the engineering design process, students first watch a video that shows rocket launch failures and then participate in three teacher-led mini-activities with demos to explore key rocket design concepts: center of drag, center of mass, and momentum and impulse. Then the class tests four combinations of propellants (air, water) and center of mass (weight added fore or aft) to see how these variables affect rocket distance and hang time. From what they learn, student pairs create their own rockets from plastic bottles with cardboard fins and their choices of propellant and center of mass placement, which they test and refine before a culminating engineering field day competition. Teams design for maximum distance or hang time; adding a parachute is optional. Students learn that engineering failures during design and testing are just steps along the way to success.
Students apply everything they have learned over the course of the associated …
Students apply everything they have learned over the course of the associated lessons about waves, light properties, the electromagnetic spectrum, and the structure of the eye, by designing devices that can aid color blind people in distinguishing colors. Students learn about the engineering design process and develop three possible solutions to the engineering design challenge outlined in lesson 1 of this unit. They create posters to display their three design ideas and the comparisons used to select the best design. Then, students create brochures for their final design ideas, and "sell" the ideas to their "client." Through this activity, students complete the legacy cycle by "going public" with the creation of their informative posters and brochures that explain their designs, as well as color blindness and how people see color, in "client" presentations.
All it takes is one day to start making an impact on …
All it takes is one day to start making an impact on your finances. Learn ways to save money on your monthly household bills. [4:43]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Students apply their knowledge of scale and geometry to design wearables that …
Students apply their knowledge of scale and geometry to design wearables that would help people in their daily lives, perhaps for medical reasons or convenience. Like engineers, student teams follow the steps of the design process, to research the wearable technology field (watching online videos and conducting online research), brainstorm a need that supports some aspect of human life, imagine their own unique designs, and then sketch prototypes (using Paint®). They compare the drawn prototype size to its intended real-life, manufactured size, determining estimated length and width dimensions, determining the scale factor, and the resulting difference in areas. After considering real-world safety concerns relevant to wearables (news article) and getting preliminary user feedback (peer critique), they adjust their drawn designs for improvement. To conclude, they recap their work in short class presentations.
In this animated story [25:25] from the PBS KIDS series MOLLY OF …
In this animated story [25:25] from the PBS KIDS series MOLLY OF DENALI, Molly learns about Balto, a real-life sled dog who became a hero after delivering medicine to sick children in the town of Nome, Alaska. After learning that there's a bronze statue of Balto in New York's Central Park, Molly decides that Balto should be remembered with a statue in Nenana too, to mark the start of his heroic journey. Can Molly find a way to create a statue of Balto and deliver it in time for Nenana's annual celebration? Or will a sudden snowstorm force her to change plans?
Resource provides great information on chapter 7 of the Bankruptcy code. It …
Resource provides great information on chapter 7 of the Bankruptcy code. It begins with information on liquidation, then includes an overview of the chapter, with a section on how the chapter works.
Provides information on Chapter 13 of the United States Bankruptcy Code. It …
Provides information on Chapter 13 of the United States Bankruptcy Code. It provides a background of the chapter, then goes into describing how chapter 13 works.
Online part of a Smithsonian exhibit to honor the 200th anniversary of …
Online part of a Smithsonian exhibit to honor the 200th anniversary of West Point, the site includes history, interactive maps, historical documents and artifacts.
A nurse scientist explains why she entered this field, what the career …
A nurse scientist explains why she entered this field, what the career entails, and how she uses genetic research and family health histories to assist patients in this video from WV Steam. [4:36]
This resource introduces students to the world of money with this online …
This resource introduces students to the world of money with this online tutorial. Each unit has its' own online quiz. Brave the desert, climb mountains and dodge alligators while you explore everything there is to know about earning, spending, saving, and investing.
Students are presented with the unit's grand challenge problem: You are the …
Students are presented with the unit's grand challenge problem: You are the lead engineer for a biomaterials company that has a cardiovascular systems client who wants you to develop a model that can be used to test the properties of heart valves without using real specimens. How might you go about accomplishing this task? What information do you need to create an accurate model? How could your materials be tested? Students brainstorm as a class, then learn some basic information relevant to the problem (by reading the transcript of an interview with a biomedical engineer), and then learn more specific information on how heart tissues work their structure and composition (lecture information presented by the teacher). This prepares them for the associated activity, during which students cement their understanding of the heart and its function by dissecting sheep hearts to explore heart anatomy.
Students are introduced to the concepts of the challenge question. First independently, …
Students are introduced to the concepts of the challenge question. First independently, and then in small groups, they generate ideas for solving the grand challenge introduced in the associated lesson: Your grandmother has a fractured hip and a BMD of -3.3. What medical diagnosis explains her condition? What are some possible causes? What are preventative measures for other family members? Students complete a worksheet that contains the pertinent questions, as well as develop additional questions of their own, all with the focus on determining what additional background knowledge they need to research. Finally, as a class, students compile their ideas, resulting in a visual as a learning supplement.
Each part of the engineering design process, which is fundamental to any …
Each part of the engineering design process, which is fundamental to any successful project, is illustrated in this video segment. This resource is useful for introducing components of Engineering Design (ETS) from the Next Generation Science Standards (NGSS) to grades 3-12 students. Included are teaching tips and additional background information. [4:50]
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