This two-sided poster presents images and information about ozone. The front features a series of color Earth images; each image reflects total ozone readings taken every October from 1979 to 2012. The poster back contains information about ozone under the following headings: What is Ozone?, Chemistry of the Ozone Layer, Measuring Ozone in the Earth's Atmosphere, Timeline of Stratospheric Ozone Depletion and Observations, How the Ozone Hole Forms, and A World Avoided. In addition, the back contains two activities: Visualizing the Ozone Hole and a Color by Number worksheet.

In this activity, students reconstruct past climates using lake varves as a proxy to interpret long-term climate patterns. Students use data from sediment cores to understand annual sediment deposition and how it relates to weather and climate patterns.

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Researchers have developed a new method for teaching self-driving cars how to respond to emergencies. Unlike other approaches, which teach cars to respond according to hard and fast rules, this new method trains onboard computers to react like humans do. That unique ability could make self-driving cars vastly quicker at recognizing and avoiding potential accidents. Human drivers react instinctively to road hazards—whether that’s a car that brakes suddenly or a cyclist who rushes into traffic. It’s an ability that comes from years of experience and one that’s often taken for granted. As AI experts have learned, teaching computers to do the same is notoriously difficult. Rule-based methods provide basic functionality. But they tend to be very time-consuming and can’t account for unforeseen emergencies—two tremendous liabilities for self-driving cars..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Researchers from China have pooled together some of the most powerful techniques in machine learning to create the ultimate control system. Successfully deployed in AI-regulated hybrid electric vehicles, the framework could grant other autonomous systems unprecedented levels of control and foresight. Machine learning is booming. And arguably the most popular technique in this branch of artificial intelligence is deep reinforcement learning. Loosely modeled after our brains’ reward system, deep reinforcement learning has enabled machines to reach or even surpass human-level performance in various tasks. Those tasks range from the trivial, like playing Go or video games, to the possibly life-saving, such as detecting firearms from video. But deep reinforcement learning algorithms have their limitations. For one, they generally lack the ability to take lessons learned in one task and apply them to another..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Amidst tensions over European political and territorial boundaries, the assassination of Archduke Franz Ferdinand by a Serbian terrorist in 1914 derailed peace in the western world by sparking World War I—one of the highest-casualty conflicts in modern times. While European nations quickly engaged, the United States immediately declared neutrality. By 1917, however, remaining neutral was no longer an option. The Great War would bring the United States out of isolationism and onto the world stage. It would also change life on the American home front forever. A centralized government took control of American life in an unprecedented fashion by instating a mandatory military draft, controlling industries, initiating food and ration restrictions, and launching elaborate campaigns to encourage patriotism. One of the most important, if temporary, changes brought by the war at home came from the stifled flow of labor, as men were pulled away by the draft and immigration slowed. The need for American labor provided second-class citizens, such as women and African Americans, a brief opportunity for better jobs. This glimpse would help foment in them a desire for more and equal opportunities after they were pulled away once more at war’s end. This exhibition was created as part of the DPLA’s Public Library Partnerships Project by collaborators from Digital Commonwealth. Exhibition organizer: Anna Fahey-Flynn.

This lesson focuses on a family depicted in a work of art. Students practice using vocabulary related to people and families. Activities emphasize oral and written descriptions of the people portrayed in the work of art, using possessive adjectives. Students are challenged to infer what the relationships are between figures depicted and what individuals are doing, based on such clues as their pose.

Perseus is an evolving digital library, engineering interactions through time, space, and language. Our primary goal is to bring a wide range of source materials to as large an audience as possible. We anticipate that greater accessibility to the sources for the study of the humanities will strengthen the quality of questions, lead to new avenues of research, and connect more people through the connection of ideas.

In this art history video discussion Beth Harris and Steven Zucker look at Sir Peter Paul Rubens' "The Rape of the Daughters of Leucippus," 1617-18, oil on canvas. Alte Pinakothek, Munich.

This is a laboratory-style investigation wherein students examine the petrography and major-element geochemistry of 6 samples of mid-ocean ridge basalt and related differentiated lavas recovered from the Cleft segment of southern Juan de Fuca Ridge, a medium spreading-rate MOR in the northeast Pacific Ocean. Lava types range from basalt to dacite.

After some initial background information on basalts, the MOR environment, and the study area students investigate four thin sections, beginning with typical basalts and ending with a dacite. They are led through a series of directed questions that help them gain familiarity with commonly occurring minerals and textures in mid-ocean ridge lavas. Questions direct students toward the interpretation of quench-related textural features and crystallization sequence, as well as a few other textural observations and petrographic techniques. After proceeding through the initial four thin sections and associated questions student are then asked to undertake "full thin-section descriptions" of the remaining two samples.��

After investigating the thin-sections and determining a possible crystallization sequence from the petrographic data gathered (plagioclase followed by olivine followed by augitic clinopyroxene followed by pigeonite), students examine a P-T phase diagram to constrain possible pressures of formation. Discovering that crystallization pressures were low (less than ~ 0.75 GPa) students then examine a phase diagram of the olivine-plagioclase-augite-quartz system (olivine-quartz-augite ternary, projected from the plane of plagioclase saturation) [Walker, 1979]. Students draw 2 possible liquid lines of descent (LLD) onto the diagram, and then use their petrographic observations to qualitatively plot the samples along that LLD, determining a relative sequence of chemical evolution for the suite of samples. Lastly, given those determinations, student graph the major element data for the lava suite to infer paths of chemical evolution and the effects of fractional crystallization (possibly coupled with magma mixing).

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Students can review stratigraphic concepts such as original horizontality and superposition. The white layers are pure snow, the tan layers are a mixture of gravel, sand, salt, clay and snow. Dark layers are clay-sand-rich, wet with water from melting snow (salt has caused the snow to melt).

The Journal of Geoscience Education article Fourth Grade Students Investigate Stratigraphy through Experiments and Photographs of Snow Layers provides an example of how this was used in the classroom.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Intended for middle, high school, and early college classes, this learning resource takes a multifaceted look at 19th-century painting in France, as well as at the culture that produced and is reflected by that art. Organized by region, it provides a quick glance at the setting, history, and cultural life of Paris, the ële-de-France, the mountain areas of Franche-ComtŽ and Auvergne, Normandy, Brittany, and Provence as well as in-depth examinations of more than 50 works of art. The packetŐs classroom guide includes activities that bring the music, literature, politics, cuisine, and artistic strategies of 19th-century France to life. Recommended for social studies, history, French language, and art curricula.

Piedras de Alta Tecnología. 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.

Piscinas Anquialinas Equipo STEM. Este equipo proporciona recursos para socios del Parque Histórico Nacional Kaloko-Honokōhau en Hawái. El equipo incluye referencias al idioma nativo hawaiano y la ecología con una entrevista con el tío Fred Cachola, un ambientalista local. 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.

This resource gives information about our solar system which is made up of the sun, planets and all the amazing objects that travel around it. Information about the plant sizes, distances in the solar system and the size and shape of orbits is also explained. The universe is filled with billions of star systems. And the star system we are most familiar with is our own.

Plankton to Plastic Pollution STEM Kit. The Natural Sciences Education & Outreach Center collaborates with CSU faculty, National Parks and citizen science programs to translate their current scientific research into unique STEM experiences for students in the form of Educational Kits that can be checked out. Each kit contains just about all of the materials needed (minus common things like water and paper towels) to explore some really interesting scientific research topics. The kits are available for teachers and informal educators in Colorado to check out for a duration of a week by submitting either a local pickup form or a delivery form available at the linked website. Please use the contact information on the STEM Kit overview page to learn more. https://www.cns-eoc.colostate.edu/stem-kits/ This kit is provided free for educational use. This resource is also available in Spanish in the linked file.

This University of California Berkeley Museum of Paleontology site provides an interactive geologic timescale that illustrates the temporal distribution of several important plant groups. First appearances of major plant groups are plotted on a colorful timescale and each group is linked to references, text, images, and further information. Key Cretaceous plant groups featured include Anthocerotophyta, Anthophyta and Gnetales. The site might be a useful resource for constructing introductory level lectures concerned with paleobotany and paleoecology of the Cretaceous Period.

What do plants eat? This unit explores plants and how they make food.

Students will examine architectural structures in paintings and how they are used, also considering the art elements, composition, emphasis, color, and light. They will also study the relationship between the built environment and nature in the paintings. Students then complete activities in which they select words and phrases to describe a painting's mood and write related poetry. Then they create drawings and write related poetry. As an optional activity, students may construct their own "camera obscura" and create a drawing.

This video lecture looks at the painting techniques of Jackson Pollock: "One: Number 31, 1950". Abstract Expressionist New York. The Museum of Modern Art, October 3, 2--April 11, 2011. Filmed by Plowshares Media Images courtesy of Pollock-Krasner Foundation/Artists Rights Society (ARS), New York; and The Museum of Modern Art, New York. Music by Chris Parrello Chris Parrello, Ian Young, Kevin Thomas, Ziv Ravitz.

Graph reading and data analysis are highlighted in this activity where students identify the countries that produce the highest levels of polluting atmospheric emissions. They compare these data with the population of the countries, and describe how the percentage of total emissions and total population numbers are related. The resource includes the graph and a student worksheet. This is an activity from Space Update, a collection of resources and activities provided to teach about Earth and space. Summary background information, data and images supporting the activity are available on the Earth Update data site.