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  • Rachel Carson: Sounding an Environmental Alarm
    Margaret Pennock, David Wood, Stephanie Samaniego (WGBH; PBS, 2010)
    Lesson focuses on Rachel Carson's work and her book "Silent Spring." 11There is a link to the Video. The first segment shows presidents from Kennedy through George W. Bush speaking about the environment.
  • Racing to the Finish: The Decision to Bomb Hiroshima and Nagasaki
    Goldberg, Stanley (Journal of American East Asian Relations, 1995)
    Author argues that General Leslie Groves, Director of the Manhattan Project, was focused on one thing, and that was to make sure the atomic bomb was used only to end wwll.
  • Radioactive Element 94 from Deuterons on Uranium
    Seaborg, G. T. / McMillan, E. M. / Kennedy, J. W. / Wahl, A. C. (Physical Review, 04/1 and 1)
    A letter to the editor describes the beta decay of the product of bombarding uranium with deuterons in the 60-inch cyclotron at the University of California, Berkeley, to produce radioactive element 94. Led to the discovery ...
  • Radio Bikini
    Stone, Robert (PBS, 00/00/1989)
    This film provides a view of the events in 1946 at Bikini Atoll in the Marshall Islands of the Pacific, where the US tested atomic weapons after WWII. Original film footage and Audio clips along with interviews.
  • Radio Bikini
    Stone, Robert (PBS, 1989)
    60 minute documentary film shows real footage and Audio of the events that occurred on Bikini Atoll in the Pacific in 1946. The USA was testing atomic weapons after wwll had ended. Academy Award Winning film
  • Radiochemistry of the Fission Products
    Steinberg, Ellis P. (Journal of Chemical Education, 1989)
    This is the writers account from his memories of working on the atomic bomb. Here he explains the work that he and other scientists did at the Chicago Met Lab on fission products
  • RAFT Writing Template
    Unknown author (IRA/NCTE, 2012-01-13)
    This lesson teaches students to organize their writing by considering: the role of the writer, the audience, the format, and topic.
  • Railroads
    Summer Productions, Inc. (Discovery Education, 2012-01-13)
    Students look at their hometown from the perspective of transportation options. Ask students to select a large city at least 500 miles away and figure out the best way of going to round-trip.
  • Ramp: Forces and Motion
    Sam Reid (University of Colorado, 2012-01-13)
    This simulation allows you to push objects up a ramp and observe the force and motion. The material of the ramp and its angle can also be changed.
  • Random Drawing Tool- Individual Trials
    Illuminations (National Council of Teachers of Mathematics, 1/1/2011)
    Students simulate drawing tickets from a box, where each ticket has a number written on it. The relative frequency of each number is displayed in a frequency distribution.
  • Random Drawing Tool- Individual Trials (Probability Simulation)
    Florida Department of Education (Florida Department of Education, 1/1/2010)
    An applet simulates drawing tickets from a box. The applet demonstrates probability in a concrete example.
  • Rank the Basketball Players
    Florida Department of Education (Florida State University, 1/1/2011)
    Students are given a basketball scenario where three students shoot and make a different number of free throws. Students determine the better of two free-throw shooters and the best of the three.
  • Rapid Recall Games
    Florida Department of Education (Florida State University, 1/1/2011)
    The students are given flash cards and asked to play a game involving quick recall of addition and subtraction facts with a partner.
  • Rationals: Multiply, Divide and Application
    Millard, Lewis, Moore, John (jwilson.coe, 3/25/2005)
    This lesson allows students to visualize the fraction multiplication process
  • Ratios, proportions, and percents: Write a ratio to describe objects in a picture
    IXL Learning (IXL Learning, 6/22/2011)
    This is an interactive activity that allows users to enter ratio based upon given pictures. Allows users to understand the concept of a ratio to describe a ratio relationship between quantities.
  • Raw Materials Activities of the Manhattan Project on the Colorado Plateau
    Chenoweth, William L. (Nonrenewable Resources, 1997)
    Details of the acquisition of large amounts of uranium oxide required for the Manhattan Project were found in the sources on the Colorado Plateau.
  • Reaching Zero
    Schell, Jonathan (The Nation, 4/19/2010)
    This article underscores the need for a new, comprehensive nuclear weapons strategy and calls for a revived effort to ensure nonproliferation.
  • Reaction to John Hersey's Hiroshima
    Luft, Joseph, Wheeler, W. M. (Journal of Social Psychology, 00/00/1948)
    This article discusses the feelings of American readers about the atomic bombing of Hiroshima after being confronted with John Hersey's 1946 article, Hiroshima, which told the Graphic story of several survivors.
  • Read a Song: Using Song Lyrics for Reading and Writing
    Melissa Weimer (International Reading Association, 2011)
    This lesson uses children's song storybooks to make connections that the words sung in songs are also part of the book that can be read.
  • Reader Response in HyperText: Making Personal Connections to Literature
    Patricia Schulze (National Council of Teachers of English, 2011)
    Students write a narrative of place, a character sketch, an extended metaphor poem, and a persuasive essay then link all four Texts to the quotations they selected.