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"A Modern School": Abraham Flexner Outlines Progressive Education
In the early 20th century, an impressive array of intellectuals, social critics, and grassroots activists came together to launch a progressive education movement that sought broad-based change in American educational practice. At the heart of the progressive program lay a pedagogy that emphasized flexibility and critical thinking. This was coupled with the belief that schools should establish organic relationships with their communities, that curricula should confront broad social issues, and t
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Cabri as a shared workspace within the proving process.
This paper will discuss some findings from a study investigating the development of the proving process in a dynamic geometry environment. Through a detailed analysis of students' processes when working with open geometry problems involving conjecturing and proving in Cabri, an analytical and explanatory framework has been developed. This paper examines in particular the interactions between the students in the proving process. The analysis shows that Cabri works as a shared workspace, i.e. as a
Author(s): Olivero Federica

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Problem-solving and Web resources at tertiary level
We organised two experimental teaching designs involving web resources in two different French universities. In this paper, we describe these experiments and analyse the students' behaviours. Our aim is to observe whether the use of specific online resources favours the development of problem-solving activities.
Author(s): Cazes Claire,Gueudet Ghislaine,Hersant Magali,Vand

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Evaluating How Our Students Think and Learn: Research Results from the Trenches
This PowerPoint presentation addresses research on the thinking and learning processes of students and how increased knowledge of these processes can be used to structure lectures in a manner that will change the way students learn. It covers methods for course redesign, classroom assessment techniques, levels of learning and goals in general education courses. Among other things, it was found that student success is predictable, all students benefit from active learning, and group work is impor
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Energy Balance Climate Model
Students explore a Global Energy Balance Climate Model Using Stella II. This Stella model focuses on global energy balance and creating a useful climate model. Students can explore how the model planetary surface and atmospheric temperatures respond to variations in solar input, atmospheric and surface albedo, atmospheric water vapor and carbon dioxide, volcanic eruptions, and mixed layer ocean depth. Climate feedbacks such as water vapor or ice-albedo can be turned on or off. The activity provi
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Earth's Radiation Budget: Part 1
In this activity students explore the Earth's radiation budget using Earth radiation Budget Experiment (ERBE) data archived at the IRI/LDEO Climate Data Library. This archive is complete with visualization tools for easy assessment and visualization of large data sets. Students also use photometers and light sources to work through several hands-on activities related to basic radiation concepts. On this Starting Point page, users can access information about the exercise's learning goals, contex
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Earth Observatory: Data and Images
This Earth Observatory site contains data and images from NASA's Earth Observatory project. The purpose of NASA's Earth Observatory is to provide an accessible publication on the Internet where the public can obtain new satellite imagery and scientific information about our home planet. The focus is on Earth's climate and environmental change. The site is useful to public media and educators. Data and images can be obtained for a variety of subjects, the Earth's atmosphere, land, life on earth,
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Daisyworld Interactive Activity
Students use a JAVA interface design to explore the Daisy World model. The model is intended to illustrate a mechanism by which biota might optimize their abiotic environment by means of negative feedback. The model does not attempt to describe all of the possible mechanisms and feedbacks which might influence the ways in which the plants and climate develop. Instead, it is an heuristic model, that seeks to describe the ways in which this mechanism might work. The original model was developed by
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Climate Reconstructions
The NOAA Paleoclimatology Program archives reconstructions of past climatic conditions derived from paleoclimate proxies, in addition to the Program's large holdings of primary paleoclimatic proxy data. The site includes reconstructions of past temperature, precipitation, vegetation, streamflow, sea surface temperature, and other climatic or climate-dependent conditions. Users can access air temperature, hydroclimate, circulation and ocean data. This is a very comprehensive archive of paleoclima
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Climate Monitoring and Diagnostic Laboratory: Carbon Cycle Greenhouse Gases
The National Oceanic and Atmospheric Administration Climate Monitoring and Diagnostic Laboratory Carbon Cycle Greenhouse Gases group makes ongoing discrete measurements from land and sea surface sites and aircraft, and continuous measurements from baseline observatories and tall towers. These measurements document the spatial and temporal distributions of carbon-cycle gases and provide essential constraints to our understanding of the global carbon cycle. This website is an interactive atmospher
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Climate Impact of Quadrupling Atmospheric CO2: An overview of GFDL Climate Model Results
In this report, the Global Fluid Dynamics Laboratory Climate Research Group examines the possible climate impacts of quadrupling atmospheric CO2. Several impacts are discussed, surface air temperature warming, sea level rise, thermohaline circulation changes, mid-latitude summer drying, heat index and temperature increases and possible changes in tropical storms and El Nino. This site provides a nice written overview and images regarding changes in climate and oceans due to increased CO2.
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Building the Digital Earth
The Cornell University's Geoscience Information System Project is a major initiative that targets to develop a comprehensive Geoscience Information System for the geosciences Building the Digital Earth is part of that project. This website is a great interactive site containing a great wealth of digital geological and geographical information. Users can access information regarding the Digital Earth project, an interactive mapping tool, data sets and metadata. Users can also access the Discover
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Introducing Copyright
A plain language guide to copyright in the 21st century By Julien Hofman Computers and the Internet have transformed the way we produce and distribute information and entertainment. And copyright is struggling to keep pace with these changes. The authors of all kinds of works, from the humble email to blockbuster films, rely on copyright to protect what they produce. But authors and those who use their work are often unclear about what copyright allows and what it prohibits. This book was wri
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Astrobiology Magazine
Astrobiology Magazine is an online service that provides summaries of scientific articles relevant to astrobiology. Specific topics include microbiology, paleontology, astronomy, climate history, planetary studies and space technology. The website is updated daily and free to access, however users must register to use the site. Users may follow links to an image gallery, book reviews, and a downloadable bibliography of research articles on astrobiology.
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Boston jobs for Boston residents
Christopher Lydon reports that Ray Flynn (Mayor of Boston) is requesting the creation of a Boston Employment Commission in order to boost the number of Boston residents working in Boston jobs. Lydon notes that the Flynn administration would like the Boston work force to be 10% female, 25% minority and 50% Boston residents. Lydon's report includes footage from an interview with Flynn about employment in Boston. Lydon reports that Flynn's proposed ordinance would change the demographics of the wor
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RocketModeler
RocketModeler was developed at the NASA Glenn Research Center in an effort to foster hands-on, inquiry-based learning in science and math. RocketModeler is a simulator that models the design and flight of a model rocket. The program works in two modes: Design Mode or Flight Mode. In the Design Mode, you can change design variables including the size of the rocket body, the fins, and the nose cone. You can also select different materials for each component. You can select from a variety of standa
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Volcanic Clouds and the Atmosphere
The common plastic water bottle makes a useful container for demonstrating properties of gases and liquids. As typical examples, we know that “air” is a gas (made up of nitrogen, oxygen, water vapor, ozone, carbon dioxide, and several “trace” gases) and water is a liquid. We should also note that gases and liquids are both “fluids”. That is, they can flow or change shape, rather than having a fixed shape like a solid. So what happens when a water bottle is opened? Usually not much. W
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EO Global Warming
Earth Expeditions: Global Warming has been designed to provide students with an interactive multimedia environment where they can learn about the causes and possible effects of the rise in concentrations of carbon dioxide in the atmosphere for more than a century. How will Earth’s environment be affected if this rise continues over the next century? The multimedia package provides background information about radiation from the Sun and Earth, the Earth’s energy balance, and the greenhouse ef
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Earth Explorers Series
Who Are NASA's Earth Explorers? The elementary school student questioning if El Nino occurs anywhere besides the Pacific Ocean... The researcher investigating connections between Arctic ozone depletion and global climate change... The consumer comparing hydrocarbon versus hydrogen-powered cars... And the business person projecting future needs for harvest, delivery, and storage of crops... All of these people are Earth Explorers -- they are all connected by their curiosity about Earth system pro
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21st Century Explorer
This site answers questions that include: Why do we want to travel to Mars? How would your body change in space? Where would a space explorer find water and oxygen? How can we travel faster in space? Student actors (on video) and hands-on activities are featured with each answer. The site is for Grades 3-5 and available in Spanish.
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