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Classroom Triangles
In this activity, students will use bearing measurements to triangulate and determine objects' locations. Working in teams of two or three, students must put on their investigative hats as they take bearing measurements to specified landmarks in their classroom (or other rooms in the school) from a "mystery location." With the extension activity, students are challenged with creating their own map of the classroom or other school location and comparing it with their classmates' efforts.
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Form vs. Function
Students model and design the sound environment for a room. They analyze the sound performance of different materials that symbolize wallpaper, thick curtains, and sound-absorbing panels. Referring to the results of this analysis, they then design another room based on certain specifications and test their design.
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How Much Sugar is in Bubble Gum?
Most of the flavoring in gum is due to the sugar or other sweetener it contains. As gum is chewed, the sugar dissolves and is swallowed. After a piece of gum loses its flavor, it can be left to dry at room temperature and then the difference between its initial (unchewed) mass and its chewed mass can be used to calculate the percentage of sugar in the gum. This demonstration experiment is used to generate new questions about gums and their ingredients, and students can then design and execute ne
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Buoyant Boats
Students will conduct a simple experiment to see how the water level changes in a beaker when a lump of clay sinks in the water and when the same lump of clay is shaped into a bowl that floats in the water. They will notice that the floating clay displaces more water than the sinking clay does, a result that will probably surprise them. They will then determine the mass of water that is displaced when the clay floats in the water. A comparison of this mass to the mass of the clay itself should r
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Powerful Pulleys
Students continue to explore the story of building a pyramid, learning about the simple machine called a pulley. They learn how a pulley can be used to change the direction of applied forces and move/lift extremely heavy objects, and the powerful mechanical advantages of using a multiple-pulley system. Students perform a simple demonstration to see the mechanical advantage of using a pulley, and they identify modern day engineering applications of pulleys. In a hands-on activity, they see how a
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Protecting the Mummified Troll
Students are introduced to the (hypothetical) task of developing an invisible (non-intrusive) security system to protect the school's treasured mummified troll! Solving the challenge depends on an understanding of the properties of light. After being introduced to the challenge question, students generate ideas and consider the knowledge required find solutions. They watch a portion of the "Mythbuster's Crimes and Myth-Demeanors" episode ($20), which helps direct their research and learning towa
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Earthquakes Rock!
Students learn the two main methods to measure earthquakes, the Richter Scale and the Mercalli Scale. They make a model of a seismograph a measuring device that records an earthquake on a seismogram. Students also investigate which structural designs are most likely to survive an earthquake. And, they illustrate an informational guide to the Mercalli Scale.
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Images of the Sun
Skylab's solar experiments captured images of the sun in incredible detail and revealed unknown aspects of the Sun.
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Gummy Bear Experiment - Conversion of Bond Energy to Heat Energy and Light Energy
This cool science experiment illustrates the conversion of bond energy to heat energy and Light Energy. It is also a good demonstration cellular respiration. At www.RegentsTutor.com the Regents Tutor will help you prepare for your class or Regents Exam. Take online video lessons, interactive exam questions with video answers, review sheets, live chat and other tools to help you improve your grades. Current subjects include Chemistry and The Living Environment (Biology). Check the website for add
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Nobody's Perfect
This brief OLogy article helps kids understand that even Einstein made mistakes and didn't always finish everything he started. And, more importantly, that both his mistakes and his unfinished work also led to new ways of thinking. The article uses Einstein's Unified Field Theory as evidence of the value that can be found in imperfection.
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Introduction

People have always communicated with each other – initially by face-to-face communication through gestures and sounds, then over a distance through written messages and signals in the form of fires, lights or flags. Technology, for instance in the form of electrical signals, has reduced many of the limitations of distance. Communication networks have become very important, and modern society depends on them for the smooth operation of economic and social activities. In this unit we regard a
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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

3.4 Evolving roles in teaching

The impact of the expanding contribution of teaching assistants on the teacher's role is generally recognised as being positive. It is worth acknowledging, however, that many teachers have had to make adjustments to their practice in order to work with teaching assistants as team colleagues. Despite the presence of assistants in primary schools, the focus of much initial teacher training is on teachers working in classrooms on their own rather than as collaborators with other adults. While th
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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

2.2 Profile of teaching assistants: an overview

Traditionally the primary education sector has employed a high proportion of women teachers. In England and Wales in 1980, male teachers constituted around 23 per cent and female teachers 77 per cent of the workforce (DES, 1980). By 1999 the number of men had decreased to 17 per cent and that of women had increased to 83 per cent (DfES, 2002). There is reason to think that this trend is continuing. Primary teaching is certainly a ‘feminised’ workforce, but there are also anomalies re
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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

Enhancing Humane Science - Improving Animal Research
This course provides a broad overview of diverse topics in the practice of and approaches to humane animal experimentation.
Author(s): Alan M. Goldberg and James Owiny

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Content within individual OCW courses is (c) by the Johns Hopkins University and individual authors unless otherwise noted. JHSPH OpenCourseWare materials are licensed under a Creative Commons License

Alien Ink Graphic Novel
Alien Ink Graphic Novel
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Professor Shaun Breslin and Professor Adil Najam: The Strategic Partnership and Globalisation
The University of Warwick's Professor Shaun Breslin and Boston University's Professor Adil Najam, Director, Frederick S Pardee Centre discuss the strategic partnership between the two universities particularly in the field of Globalisation.
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The Verdict: did Labour change Britain?
We've had Mandelson's memoirs, Blair's book and Brown biographies: in this lecture Polly Toynbee and David Walker look at what the Labour government in power from 1997 meant for people's lives by charting what it accomplished. Polly Toynbee is an author and a political and social commentator for the Guardian. David Walker edits Public and was formerly chief leader writer of the Independent. They are co-authors of The Verdict: Did Labour Change Britain?
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INFO2009 Privacy DPA and other legislation.
INFO2009 Privacy DPA and other legislation. - su white Keywords:DPA , Data Protection Act , Privacy
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8.5 Actividad

Actividad 8.4

Vocabulario


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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

6.4 Does one community seceding grant a similar right to others?

Consider the position of community C. If B secedes, it takes C with it into the new state. But does C then have the same right to secede from B? Consider the case of Quebec. In the most recent independence referendum, Quebecois separatists came very close to achieving the bare majority they need to achieve their goal. But if they have the right to secede from Canada, would other groups who do not see themselves as a part of a francophone entity likewise have the right to a further independenc
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en el campo in the countryside