Students learn about the fundamental strength of different shapes, illustrating why structural engineers continue to use the triangle as the structural shape of choice. Examples from everyday life are introduced to show how this shape is consistently used for structural strength. Along with its associated activity, this lesson empowers students to explore the strength of trusses made with different triangular elements to evaluate the various structural properties.

Students learn about and use a right triangle to determine the width of a "pretend" river. Working in teams, they estimate of the width of the river, measure it and compare their results with classmates.

This course is the first in the introductory surveys of U.S. History. After exploring North America before the arrival of Europeans, students will study the early interactions of Europeans with indigenous peoples and, as the course progresses, study the history of peoples in the area now defined by the United States' borders. Those who would like to pursue their study of American history will also want to take Hist 147 (U.S. History II) and Hist 148 (U.S. History III).Login: guest_oclPassword: ocl

Welcome to History 147, the second in the introductory surveys of U.S. history. We begin in that decade when the United States in three years (1845-48) grew by 50 percent. Through the Civil War to the 20th century, we explore how different people experienced the transformation of the country into an industrial nation and emerging world power. Those who would like to pursue their study of American history will want to take Hist 146 (U.S. History I) and Hist 148 (U.S. History III).

This course is the third in the introductory surveys of U.S. history. The course surveys the significant forces and people that have shaped American civilization from the Progressive Era to the present. This course starts at the beginning of the 20th century and explores how different people, including you, participated in the nation's transformation through that century until today. Those who would like to pursue their study of American history may wish to take Hist 146 (US History I) and Hist 147 (US History II).Login: guest_oclPassword: ocl

Three-part unfolding case of a hospitalized older adult demonstrating impact of unrecognized cognitive disturbances and use of standardized assessment instruments to guide recognition.
Instruments featured include the AD-8, the Geriatric Depression Scale and the Montreal Cognitive Assessment. The role of interprofessional collaboration to reduce care fragmentation is also featured.

This activity shows students how to match their information needs and search strategies to appropriate search tools. In this case, students are learning how to find and use academic databases in order to locate resources that are relevant to their academic research assignment.

Students focus on the testing phase of the design process by considering how they have tested computer programs in the past and learning about a new method called JUnit to test programs in the future. JUnit is a testing method that is included with NetBeans (Java) installs or can be downloaded from the web and included in the Java build. Students design tests using JUnit and implement those tests.

Students learn how to quickly and efficiently interpret graphs, which are used for everyday purposes as well as engineering analysis. Through a practice handout completed as a class and a worksheet completed in small groups, students gain familiarity in talking about and interpreting graphs. They use common graph terminology such as independent variable, dependent variable, linear data, linear relationship and rate of change. The equation for calculating slope is explained. The focus is on students becoming able to clearly describe linear relationships by using the language of slope and the rate of change between variables. At lesson end, students discuss the relationship between variables as presented by the visual representation of a graph. Then they independently complete a homework handout.

In this activity, students will use vector analysis to understand the concept of dead reckoning. Students will use vectors to plot their course based on a time and speed. They will then correct the positions with vectors representing winds and currents.

Students learn how viruses invade host cells and hijack the hosts' cell-reproduction mechanisms in order to make new viruses, which can in turn attack additional host cells. Students also learn how the immune system responds to a viral invasion, eventually defeating the viruses -- if all goes well. Finally, they consider the special case of HIV, in which the virus' host cell is a key component of the immune system itself, severely crippling it and ultimately leading to AIDS. The associated activity, Tracking a Virus, sets the stage for this lesson with a dramatic simulation that allows students to see for themselves how quickly a virus can spread through a population, and then challenges students to determine who the initial bearers of the virus were.

Students are introduced to the concept of viscoelasticity and some of the material behaviors of viscoelastic materials, including strain rate dependence, stress relaxation, creep, hysteresis and preconditioning. Viscoelastic material behavior is compared to elastic solids and viscous fluids. Students learn about materials that have viscoelastic behavior along with the importance of engineers understanding viscoelasticity. To best engage the students, conduct the first half of the associated Creepy Silly Putty activity before conducting this lesson.

Students are introduced to the similarities and differences in the behaviors of elastic solids and viscous fluids. Several types of fluid behaviors are described Bingham plastic, Newtonian, shear thinning and shear thickening along with their respective shear stress vs. rate of shearing strain diagrams. In addition, fluid material properties such as viscosity are introduced, along with the methods that engineers use to determine those physical properties.

Students learn the value of writing and art in science and engineering. They acquire vocabulary that is appropriate for explaining visual art and learn about visual design principles (contrast, alignment, repetition and proximity) and elements (lines, color, texture, shape, size, value and space) that are helpful when making visual aids. A PowerPoint(TM) presentation heightens students' awareness of the connection between art and engineering in order to improve the presentation of results, findings, concepts, information and prototype designs. Students also learn about the science and engineering research funding process that relies on effective proposal presentations, as well as some thermal conductivity / heat flow basics including the real-world example of a heat sink which prepares them for the associated activity in which they focus on creating diagrams to communicate their own collected experimental data.

Voices of Virginia pulls together stories from oral history collections from across decades and archives to create an all-audio source companion for Virginia’s high school and college students. The "album" is only two hours long, but contains dozens of short oral histories from eyewitnesses to key moments in American history, from the end of the Civil War to the 1980s. The excerpts are downloadable, accessible by smartphone, and accompanied by a transcript. Audio clips are also available on Soundcloud. You’ll also find a brief introduction to each narrator, historical context adapted from experts at Encyclopedia Virginia, American Yawp, and Public Domain sources, and helpful classroom tools like discussion questions, activities, and lesson plans that fit into both the Virginia high school and college U.S. History curriculum. By following the larger national story with narratives from across the Commonwealth, Voices of Virginia grounds students in how history guides and is guided by everyday people and their experiences.

This material is aligned to the History and Social Science Standards for Virginia Public Schools - March 2015.

The collection was curated by Jessica Taylor, Ph.D. with Emily Stewart.

Feedback regarding this collection is welcome at https://bit.ly/VoicesOfVirginia

After students have complete the associated activity to collect and graph acceleration data from walking human subjects, they learn more about gait analysis---the study of human motion, which is used as biometric data for human medical diagnostics and (non-human) comparative biomechanics. They learn about the steps that comprise the universal process of engineering analysis—data collection, data analysis, mathematical modeling and reporting—and consider how these steps could be applied to analyze a person's gait, which prepares them to conduct the second associated activity.

Students learn about the water cycle and its key components. First, they learn about the concept of a watershed and why it is important in the context of engineering hydrology. Then they learn how we can use the theory of conservation of mass to estimate the amount of water that enters a watershed (precipitation, groundwater flowing in) and exits a watershed (evaporation, runoff, groundwater out). Finally, students learn about runoff and how we visualize runoff in the form of hydrographs.

Students learn about the types of waves and how they change direction, as well as basic wave properties such as wavelength, frequency, amplitude and speed. During the presentation of lecture information on wave characteristics and properties, students take notes using a handout. Then they label wave parts on a worksheet diagram and draw their own waves with specified properties (crest, trough and wavelength). They also make observations about the waves they drew to determine which has the highest and the lowest frequency. With this knowledge, students better understand waves and are a step closer to understanding how humans see color.

This activity helps students evaluate their own authority on a particular subject so that they can begin to understand how authority is created and effectively evaluate the authority of other sources they encounter. Additional evaluation criteria is also introduced.

Students are presented with the concepts of wetting and contact angle. They are also introduced to the distinction between hydrophobic and hydrophilic surfaces. Students observe how different surfaces are used to maintain visibility under different conditions.