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What's the chance?: concepts of probability
Probability offers one of those rare intersections where classroom mathematics crosses middle school experience. The problem scenarios investigated at this level often start with a game—as did theoretical probability itself. Students find that many of the phenomena they encounter in game playing have predictable outcomes. To reach that conclusion, they need opportunities to consider data they generate, noting patterns that emerge and comparing their results with those predicted by theory.
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Dive and Discover: Juan de Fuca Ridge
Dive and Discover brings you right aboard the expedition to the Juan de Fuca Ridge in the Pacific Ocean, where scientists are exploring hydrothermal vent fields and microbes inhabiting hydrothermal vents. The site gives you access to the latest oceanographic and deep submergence research from a variety of scientists including geologists, geophysicists, chemists, and biologists who are exploring the seafloor and making amazing deep-sea discoveries. The mission and objectives, daily updates, photo
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The Microbial Biorealm
The Microbial Biorealm is an informational site about microbes written by students for students. Hosted by Kenyon College, the site includes molecular and taxonomic information about microbes from all three domains of life. A comprehensive table lists the properties and characteristics of each domain of life while taxonomy pages list classification, description, significance, genome structure, cell structure, metabolism, ecology, isolation, cultivation, and references specific to individual taxa
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Collaboration via Slime Mold
This hands-on activity gives students the opportunity to use skills and concepts developed in a unit on cells with an unknown organism. They are asked to design and complete a controlled experiment which attempts to answer a simple question about the slime mold Physarum. The activity includes background information, preparation time, abstract, materials, procedure, evaluation, and additional thoughts. The activity is part of The Access Excellence Fellows Collection, an archive of the favorite cl
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Dirtland Microbe Zoo
From the Digital Learning Center for Microbial Ecology, this web site features "Dirtland", an interactive microbe zoo. The site explores the endless varieties of microorganisms and the environments they inhabit. These habitats include composts, at home, agriculture, hot springs, snow and ice, mines, root cellars, toxic waste, animals, soil, food, space, and water. Each habitat link provides a description of the environment as well as images and descriptions of particular species of microorganism
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Tree of Life
Teachers, learners and science enthusiasts are invited to explore Life on Earth and share their learning by building ToL treehouses and publishing them on the Tree of Life. Broadening our contributor base and audience is part of our efforts to create an open access digital library about biodiversity. The ToL provides four different ways of interacting with ToL learning resources, from the least interactive (browsing) to the most interactive (becoming a treehouse builder and creating ToL treehous
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A Colonial Legacy in Miskito Turtle Knowledge (Nicaragua)
Over the past several decades the increasing prevalence of natural resource crises has led many ecologists to seek alternatives to Western resource use paradigms. Primary amongst these alternatives are systems guided by indigenous knowledge (IK). It is commonly presumed that these systems represent institutions uncorrupted by the exploitative hand of Western culture and state domination and therefore hold the key to rectifying the unsustainable behaviors of Western societies.
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Global Development Policies and Social Injustice
The Sixth Goal of the Millennium Development Goals (MDG) is: Combat HIV/AIDS, malaria and other diseases such as tuberculosis. In Bolivia, a country with a population of over 8,000,000 people, it was claimed in 2006 that there were 2366 confirmed cases of HIV. According to the World Health Organization, Bolivia is considered to be a country with a low incidence of the virus affecting 0.10% of the adult population. In contrast, it has been estimated that 50% of the population is infected
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100th Day of School Activities
Resources to mark the 100th day of school with math activities. Challenge students to generate 100 different ways to represent the number 100. Students will easily generate 99 + 1 and 50 + 50, but encourage them to think out of the box. Challenge them to include examples from all of the NCTM Standards strands: number sense, numerical operations, geometry, measurement, algebra, patterns, data analysis, probability, discrete math, Create a class list to record the best entries. Some teachers write
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Hundred Board Activities 2
Students use "magic" to navigate around the hundred board. This activity introduces horizontal arrows which mean move one square in the direction the arrow points and vertical arrows which mean move up or down one row in the direction the arrow points. These activities support students as they develop understanding of powerful number patterns in the hundred board: (1) moving across or back one space means adding or subtracting one from the starting number; (2) moving up or down one row means add
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Hundred Board Activities 1
Students learn the patterns in the hundred board by assembling puzzles. Teachers are able to assess student use of patterns in rows and columns by observing the student at work. This task is easily differentiated to accommodate the varied levels in a first grade class by changing the number of pieces and the shape of the pieces. Puzzle bags should be sequentially lettered so that students progress through harder versions of the task. Finally, students are asked to create their own puzzles for cl
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Investigating Dominoes
Dominoes have become a staple in most primary classrooms. They build upon dice patterns and are often used to model decomposition of numbers, building student knowledge of addition facts. They are an excellent manipulative for primary students to use and these are some examples of how students might use dominoes in the math center. Try these domino games with students to improve math skills and number recognition. Encourage students to play these games at home with their families, using real dom
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Algebra: Growing Patterns
Introduce elementary students to the concept of functions by investigating growing patterns. Visual patterns formed with manipulatives are especially effective for elementary students and allow them to concretely build understanding as they first reproduce, then extend the pattern to the next couple of stages.
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Theodore Roosevelt: His Life and Times on Film
Theodore Roosevelt was the first U.S. president to have his career and life chronicled on a large scale by motion picture companies (even though his predecessors, Grover Cleveland and William McKinley, were the first to be filmed). This presentation features 104 films which record events in Roosevelt's life from the Spanish-American War in 1898 to his death in 1919; 8 of these films have previously appeared in other American Memory presentations. The majority of films (87) are from the Theodore
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The Frederick Douglass Papers at the Library of Congress
This site presents the papers of the 19th-century African-American abolitionist who escaped from slavery and then risked his own freedom by becoming an outspoken antislavery lecturer, writer, and publisher. The first release of the Douglass Papers contains 2,000 items (16,000 images) that span the years 1841 to 1964 and relate to Douglass's life as an escaped slave, abolitionist, editor, orator, and public servant.
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Working in Paterson: Occupational Heritage in an Urban Setting
Working in Paterson: Occupational Heritage in an Urban Setting presents 470 interview excerpts and 3882 photographs from the Working in Paterson Folklife Project of the American Folklife Center at the Library of Congress. The four-month study of occupational culture in Paterson, New Jersey, was conducted in 1994. Paterson is considered to be the cradle of the Industrial Revolution in America. It was founded in 1791 by the Society for Establishing Useful Manufactures (S.U.M.), a group that had U.
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War and Peace
Gain insight into wars by studying maps, letters, and historic newspapers. Consider women’s roles during the Civil War and World War II. See film clips of the Spanish-American War, the first war to be captured on film. Listen to recordings from World War I and the 1920 Election. Analyze Ansel Adams’ photo documentary of life at Manzanar to deepen understanding of Japanese internme
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Analyzing Significant Events in "Jim the Boy"
This activity, to be completed after reading Tony Early's "Jim the Boy", helps students identify examples and details and then analyze them effectively. The class will brainstorm examples of life-changing events in Jim's life. The teacher will select one of the events, find the pages in the novel where it is discussed, and show the students how to annotate the text by marking details and commenting on them. Using a "T" chart, the class will then select three of the details to analyze.
Author(s): Vickie Smith

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Reading for Philosophical Inquiry
In this introduction to philosophical thinking, we will read some essays specially chosen from four main areas of interest: (1) the philosophy of life, (2) the philosophy of religion, (3) ethics, and (4) metaphysics and theory of knowledge. Although our approach is not comprehensive, it is reasonably representative of some of the more significant areas of philosophical inquiry. The readings are intended to illustrate the interrelations between these subject areas of philosophy and, as well, to p
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Structural Models
Presents quantitative approaches to theory construction in the context of multiple response variables, with models for both continuous and categorical data. Topics include the statistical basis for causal inference; principles of path analysis; linear structural equation analysis incorporating measurement models; latent class regression; and analysis of panel data with observed and latent variable models. Draws examples from the social sciences, including the status attainment approach to interg
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