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===Activity Measure===
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====Activity Summary====
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Measuring this activity helps students explore the physical world, it allows us to see
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different variations of a sound (frequency, amplitude, etc..) using the microphone
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XO. The student can have a visual representation of a wave as well as learn
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concepts related: the frequency, amplitude, time, etc.. This activity can be
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used during the course of primary education, and since the first year.
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====Affordances of the activity====
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* The student can view a graphical representation of the wave produced by sound.
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* Students can record over a period of time that the wave generated.
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* Students may be required to differentiate the sound of a tone.
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* It can classify the sounds according to their kind.
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* Students can measure the amplitude of a sound.
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* Students can measure the frequency of a wave.
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* The student can compare the sound with his classmates.
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The activity measurement also presents a number of affordances such as measuring the
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voltage of a current or observe these currents on the screen as you would with a
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oscilloscope, which can be developed as required curriculum. A list of
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possibilities and specifications for construction of the different probes are available at
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Next: # http://wiki.laptop.org/go/Measure Projects_and_Activities_Index. Only
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this resource is available in English and requires skills in
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of electricity. For the use of probes and tools (thermometer,
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pH indicator, indicator of the turbidity of a liquid indicator of the conductivity of a
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liquid, etc..) software were designed specifically for the XO. For more
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information, visit the Vernier to the following address:
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http://www.vernier.com/netbooks/olpc.html
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====Degree of centrality of the activity====
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This activity in terms of curricula for the 4th year of primary education can be regarded as
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device. At the central level, it could be placed at level 3. Because if it does
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is really not the primary curriculum, it enables students to explore
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domains other than those prescribed and develop curiosity and promote its
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spirit of discovery.
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====Application pédagogique 1====
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====''Exploration and comparison of sounds''====
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''Level (s)'': 4th to 5th grade of primary
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''Knowledge'': The CW
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''Savoirfaire'':
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Explore the sounds in their physical dimension.
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''History'':
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Through the feature that allows you to record sound, the teacher and students
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could save a number of sounds to form a kind of
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sound database.
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Once the database set up (the sounds come from both
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the everyday environment, as everywhere else) students proceed to
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comparisons to determine which sounds are the highest, lowest, most
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acute, the most serious differentiate waves and sound, see the frequency and
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amplitude, etc..
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====User Guide for the Measurement====
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To start this activity, click the Measure icon is in the perspective
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Home XO (it is represented by a screen where we see a curve).
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<image Home view>
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Once in the business, we have a number of features, so we can
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amplitude control (visual) by extending or shortening.
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<image >
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The microphone can record sounds is de facto running as soon as we began
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on the Measure. There is an icon that lets you start recording
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sound (at the top of the screen on the far right) and another that allows you to control when
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recording (it can be done immediately or can be programmed in a
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time interval determined). Sound option allows you to see sounds, but
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also be recorded, while the option Sensors can measure the voltage of a
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current, but also see it on the screen. Like all activities,
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to share his business, click on the Activity tab, and then click Share with: My
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neighborhood, and follow the procedure for sharing on pages 15 to 17 of Getting Started in XO and
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the environment Sugar V.8.2.
 
===Activity Scratch===
 
===Activity Scratch===
 
====Activity Summary====
 
====Activity Summary====

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