Students demonstrate the erythrocyte sedimentation rate test (ESR test) using a blood …
Students demonstrate the erythrocyte sedimentation rate test (ESR test) using a blood model composed of tomato juice, petroleum jelly and olive oil. They simulate different disease conditions, including rheumatoid arthritis, anemia, leukocytosis and sickle-cell anemia, by making appropriate variations in the particle as well as in the fluid matrix. Students measure the ESR for each sample blood model, correlate the ESR values with disease conditions and confirm that diseases alter blood composition and properties. During the activity, students learn that when non-coagulated blood is let to stand in a tube, the red blood cells separate and fall to the bottom of the tube, resulting in a sediment and a clear liquid called serum. The height in millimeters of the clear liquid on top of the sediment in a time period of one hour is taken as the sedimentation rate. If a disease is present, this ESR value deviates from the normal, disease-free value. Different diseases cause different ESR values because blood composition and properties, such as density and viscosity, are altered differently by different diseases. Thus, the ESR test serves as a real-world diagnostic screening test to identify indications of the presence of any diseases in people.
Students gain an understanding of the factors that affect wind turbine operation. …
Students gain an understanding of the factors that affect wind turbine operation. Following the steps of the engineering design process, engineering teams use simple materials (cardboard and wooden dowels) to build and test their own turbine blade prototypes with the objective of maximizing electrical power output for a hypothetical situation—helping scientists power their electrical devices while doing research on a remote island. Teams explore how blade size, shape, weight and rotation interact to achieve maximal performance, and relate the power generated to energy consumed on a scale that is relevant to them in daily life. A PowerPoint® presentation, worksheet and post-activity test are provided.
Students will learn the potential costs and benefits of social media, digital …
Students will learn the potential costs and benefits of social media, digital consumption, and our relationship with technology as a society in the three-week lesson. This inquiry based unit of study will answer the following questions:
Essential Question: How can we use science fiction’s ability to predict the future to help humanity?
Supportive Questions 1: What predictions of future development has science fiction accurately made in the past? This can include technology, privacy, medicine, social justice, political, environmental, education, and economic.
Supportive Question 2: What predictions for future development in contemporary science fiction are positive for the future of humanity? What factors need to begin in your lifetime to make these predictions reality?
Supportive Question 3: What predictions for future development in contemporary science fiction are negative for the future of humanity? What factors need to begin in your lifetime to stop these negative outcomes?
Students' understanding of how robotic ultrasonic sensors work is reinforced in a …
Students' understanding of how robotic ultrasonic sensors work is reinforced in a design challenge involving LEGO MINDSTORMS(TM) NXT robots and ultrasonic sensors. Student groups program their robots to move freely without bumping into obstacles (toy LEGO people). They practice and learn programming skills and logic design in parallel. They see how robots take input from ultrasonic sensors and use it to make decisions to move, resulting in behavior similar to the human sense of sight but through the use of sound sensors, more like echolocation. Students design-test-redesign-retest to achieve successful programs. A PowerPoint® presentation and pre/post quizzes are provided.
Douglas County Colorado presents a virtual museum showcasing the history of the …
Douglas County Colorado presents a virtual museum showcasing the history of the Douglas, County Colorado Region including Castle Rock, Aurora, and Highlands Ranch.
Collection of Driver's Education resources from the State of Colorado. Resources include …
Collection of Driver's Education resources from the State of Colorado. Resources include Driving Schools and Testers, Map of Schools and Testers, Motorcycle Schools and Testers, Commercial Driver Testers Map, Log Sheets, Safety Training, an Interactive Practice Quiz. Additional links are provided for the most current Driver Handbook, for students and parents. Written, Video and Audio versions are provided as well as materials in Spanish.
This is a template for creating an accessible, mobile-friendly e-text using other …
This is a template for creating an accessible, mobile-friendly e-text using other openly licensed content. It can be customized and re-branded to work for any subject area at any institution. A working knowledge of HTML and CSS is required.
This lesson introduces students to the fundamental concepts of electricity. This is …
This lesson introduces students to the fundamental concepts of electricity. This is accomplished by addressing questions such as "How is electricity generated," and "How is it used in every-day life?" The lesson also includes illustrative examples of circuit diagrams to help explain how electricity flows.
Building on concepts taught in the associated lesson, students learn about bioelectricity, …
Building on concepts taught in the associated lesson, students learn about bioelectricity, electrical circuits and biology as they use deductive and analytical thinking skills in connection with an engineering education. Students interact with a rudimentary electrocardiograph circuit (made by the teacher) and examine the simplicity of the device. They get to see their own cardiac signals and test the device themselves. During the second part of the activity, a series of worksheets, students examine different EKG print-outs and look for irregularities, as is done for heart disease detection.
This course is an introduction to power electronics. First the principles of …
This course is an introduction to power electronics. First the principles of power conversion with switching circuits are treated as well as main applications of power electronics. Next the basic circuits of power electronics are explained, including ac-dc converters (diode rectifiers), dc-dc converters (non-isolated and isolated) and dc-ac converters (inverters). Related issues such as pulse width modulation, methods of analysis, voltage distortion and power quality are treated in conjunction with the basic circuits. The main principles of operation of most commonly used power semiconductor switches are explained. Finally, the role of power electronics in sustainable energy future, including renewable energy systems and energy efficiency is discussed.
Study Goals To get acquainted with applications of power electronics, to obtain insight in the principles of power electronics, to get an overview of power electronic circuits and be able to select appropriate circuits for specific applications and finally to be able to analyse the circuits. The focus in the course is on analysis and to a lesser extent on design.
Students learn about current electricity and necessary conditions for the existence of …
Students learn about current electricity and necessary conditions for the existence of an electric current. Students construct a simple electric circuit and a galvanic cell to help them understand voltage, current and resistance.
El presente artículo presenta los resultados de una investigación que analiza el …
El presente artículo presenta los resultados de una investigación que analiza el nivel de calidad reflexiva de los profesores, en el marco de un programa innovador de formación docente que introduce la práctica reflexiva, mediada y gestionada a través de un portafolio digital. Aporta a la discusión sobre nuevos usos de un portafolio digital para mejorar los procesos de reflexión por parte del profesorado y sobre modelos alternativos de formación docente; analiza los diferentes niveles de reflexión de los participantes, e identifica los obstáculos para lograr niveles de mayor profundidad. La metodología de investigación adoptada ha sidoun estudio instrumental de caso, en el marco de un programa de formación del profesorado universitario. Los resultados obtenidos muestran que el proceso reflexivo contribuye a una percepción positiva sobre la mejora de su desempeño, la planificación de sus clases y una mejor interacción con los alumnos, y que el uso del portafolio digital ha sido bien valorado para el desarrollo del proceso reflexivo propuesto. Asimismo, se identifican carencias, sobre todo en relación con los niveles de profundidad de la reflexión docente. Por último, se presenta una propuesta de indicadores para impulsar y evaluar el desarrollo reflexivo, basada en los hallazgos del estudio.
Energy Everywhere. This is the Lesson 3 Digging Deeper activity, from Unit …
Energy Everywhere. This is the Lesson 3 Digging Deeper activity, from Unit 3 Natural Resources, from the DIGS (Developing Individuals, Growing Stewards) AmeriCorps Curriculum from CSU. The curriculum focuses on introducing students in grades 3-5 to Colorado agriculture, industry and environmental issues. The curriculum upon request. Visit: https://engagement.colostate.edu/programs-old/developing-individuals-growing-stewards/
Energízate Equipo STEM. El Centro de Extensión y Educación en Ciencias Naturales …
Energízate Equipo STEM. El Centro de Extensión y Educación en Ciencias Naturales colabora con la facultad de CSU, los Parques Nacionales y los programas de ciencia ciudadana para traducir su investigación científica actual en experiencias STEM únicas para los estudiantes en forma de kits educativos que se pueden prestar. Cada kit contiene casi todos los materiales necesarios (menos cosas comunes como agua y toallas de papel) para explorar algunos temas de investigación científica realmente interesantes. enviando un formulario de recogida local o un formulario de entrega disponible en el sitio web vinculado. Utilice la información de contacto en la página de descripción general del kit STEM para obtener más información. https://www.cns-eoc.colostate.edu/stem-kits/ Este kit se proporciona de forma gratuita para uso educativo.
Students analyze an assortment of popular inventions to determine whom they are …
Students analyze an assortment of popular inventions to determine whom they are intended to benefit, who has access to them, who might be harmed by them, and who is profiting by them. Then they re-imagine the devices in a way that they believe would do more good for humanity. During the first 90-minute class period, they evaluate and discuss designs in small groups and as a class, examining their decision-making criteria. Collectively, they decide upon a definition of "ethical" that they use going forward. During the second period, students apply their new point-of-view to redesign popular inventions (on paper) and persuasively present them to the class, explaining how they meet the class standards for ethical designs. Two PowerPoint® presentations, a worksheet and grading rubric are provided.
Students are introduced to safety protocols by evaluating unsafe situations, sharing their …
Students are introduced to safety protocols by evaluating unsafe situations, sharing their ideas with their peers, developing a list of recommended safety protocols as a class, and finally, by comparing the class list to a standard list of safety rules. This activity seeks to demonstrate the importance of safety engineering and illustrate how it helps to prevent injuries and save lives. A PowerPoint® presentation, pre/post quiz and student handout are provided.
This book has been broken down into two categories. Leadership and Business. …
This book has been broken down into two categories. Leadership and Business. You will need to learn both to be successful. We started with leadership as everything rises or falls with leadership and leading yourself is the most important step in learning to lead others. We finish off with some basic business concepts. Get these foundational pieces right will be essential for the rest of what you build. You and your business will be that much stronger because of it.
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