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		<link>http://agenaip.wordpress.com/2008/10/24/50/</link>
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		<pubDate>Fri, 24 Oct 2008 12:30:57 +0000</pubDate>
		<dc:creator>agenaip</dc:creator>
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		<description><![CDATA[Equazioni di secondo grado Risoluzione di equazione di secondo grado Un&#8217;equazione (in una sola incognita) di II grado è un&#8217;equazione in cui la variabile x compare con l&#8217;esponente 2. La forma canonica di un equazione di II grado è dove a deve essere diverso da 0. 1. a diverso da 0, b diverso da 0 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=agenaip.wordpress.com&amp;blog=4905965&amp;post=50&amp;subd=agenaip&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<h1><strong>Equazioni di secondo grado</strong></h1>
<h2>Risoluzione di equazione di secondo grado</h2>
<p>Un&#8217;equazione (in una sola incognita) di II grado è un&#8217;equazione in cui la variabile x compare con l&#8217;esponente 2. La forma canonica di un equazione di II grado è</p>
<div style="text-align:center;"><img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?ax%5E2+bx+c=0" border="0" alt="" /></div>
<p>dove a deve essere diverso da 0.</p>
<p>1. a diverso da 0, b diverso da 0 c diverso da 0 ed è definita equazione completa<br />
2. <img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?b=0" border="0" alt="" /> oppure c=0 ed è un equazione incompleta</p>
<p>2a. <img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?b=c=0" border="0" alt="" /><img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?ax%5E2=0" border="0" alt="" />: <strong>EQUAZIONE MONOMIA</strong><br />
2b. <img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?b=0" border="0" alt="" /> e <img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?c" border="0" alt="" />diverso da 0: <strong>EQUAZIONE PURA</strong><br />
2c. <img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?b" border="0" alt="" /> diverso da 0 e <img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?c=0" border="0" alt="" /><img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?ax%5E2+bx=0" border="0" alt="" />: <strong>EQUAZIONE SPURIA</strong></p>
<p><strong></strong></p>
<div style="text-align:center;"><strong>Equazioni di secondo grado incomplete</strong></div>
<p><strong></strong></p>
<p>Per risolvere le equazioni di II grado incomplete si usa spesso: la regola dell&#8217;annullamento del prodotto.</p>
<p>Però ad un equazione può mancare uno o più termini e in base al termine che manca essa è chiamata.</p>
<ul type="square"> &#8211; se manca c allora l&#8217;equazione sarà detta <strong>SPURIA </strong></p>
<div style="text-align:center;">(<img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?ax%5E2+bx=0" border="0" alt="" />)</div>
<p>- se manca bx (cioè b=0) allora l&#8217;equazione è detta <strong>PURA </strong></p>
<div style="text-align:center;">(<img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?ax%5E2+c=0" border="0" alt="" />)</div>
<p>- se manca sia bx che c allora l&#8217;equazione avrà forma <img style="vertical-align:middle;" src="http://skuola.tiscali.it/cgi-bin/mimetex.cgi?ax%5E2=0" border="0" alt="" /> allora essa è detta <strong>MONOMIA</strong></ul>
<p><strong><span style="text-decoration:underline;">Monomia</span></strong>: l&#8217;equazione monomia ha sempre 2 soluzioni coincidenti, entrambe uguali a zero</p>
<p><strong><span style="text-decoration:underline;">Spuria</span></strong>: l&#8217;equazione spuria ha una soluzione pari a zero.</p>
<p><strong><span style="text-decoration:underline;">Pura</span></strong>: se a e c sono concordi l&#8217;equazioneè impossibile oppure se sono discordi l&#8217;equazione ha 2 soluzioni, che sono l&#8217;opposto dell&#8217;altra.</p>
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		<title>Mappa concettuale con Mindomo</title>
		<link>http://agenaip.wordpress.com/2008/10/24/mappa-concettuale-con-mindomo/</link>
		<comments>http://agenaip.wordpress.com/2008/10/24/mappa-concettuale-con-mindomo/#comments</comments>
		<pubDate>Fri, 24 Oct 2008 09:22:47 +0000</pubDate>
		<dc:creator>agenaip</dc:creator>
				<category><![CDATA[ambiente sostenibile]]></category>
		<category><![CDATA[Add new tag]]></category>
		<category><![CDATA[energia]]></category>

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		<description><![CDATA[Ho provato a creare una mappa concettuale sul risparmio energetico (argomento d&#8217;attualità nel nostro centro come nel resto del mondo). Vediamo se funziona il link: Mappa sull&#8217;energia<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=agenaip.wordpress.com&amp;blog=4905965&amp;post=40&amp;subd=agenaip&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Ho provato a creare una mappa concettuale sul risparmio energetico (argomento d&#8217;attualità nel nostro centro come nel resto del mondo).</p>
<p>Vediamo se funziona il link:</p>
<p><a href="http://www.mindomo.com/view.htm?m=b932a3b54ad04707947f2cb63a45c21e">Mappa sull&#8217;energia</a></p>
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		<title>Un&#8217;animazione flash</title>
		<link>http://agenaip.wordpress.com/2008/09/19/unanimazione-flash/</link>
		<comments>http://agenaip.wordpress.com/2008/09/19/unanimazione-flash/#comments</comments>
		<pubDate>Fri, 19 Sep 2008 14:52:29 +0000</pubDate>
		<dc:creator>agenaip</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

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		<description><![CDATA[proviamo ad inserire nel blog un&#8217;animazione flash se ci riusciamo è un buon inizio disegno flash ahi,ahi l&#8217;ha collegato solo come sito&#8230;. qualcuno mi sa dire come inserire una flash animation?<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=agenaip.wordpress.com&amp;blog=4905965&amp;post=36&amp;subd=agenaip&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>proviamo ad inserire nel blog un&#8217;animazione flash</p>
<p>se ci riusciamo è un buon inizio</p>
<p><a href="http://www.animazioniflash.com/animazioni-flash-per-bambini/filmato-animazione-flash-per-bimbi.asp?id=2">disegno flash</a></p>
<p>ahi,ahi l&#8217;ha collegato solo come sito&#8230;.</p>
<p>qualcuno mi sa dire come inserire una flash animation?</p>
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		<title>Gioca con le tabelline</title>
		<link>http://agenaip.wordpress.com/2008/09/19/gioca-con-le-tabelline/</link>
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		<pubDate>Fri, 19 Sep 2008 13:41:11 +0000</pubDate>
		<dc:creator>agenaip</dc:creator>
				<category><![CDATA[aritmetica]]></category>

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		<description><![CDATA[sfida il pc con le tabelline segna il tuo punteggio migliore &#8230;e poi dimmi cosa ne pensi! clicca sul link: Tabelline: sfida il computer<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=agenaip.wordpress.com&amp;blog=4905965&amp;post=25&amp;subd=agenaip&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><img src="/DOCUME~1/utente_2/IMPOST~1/Temp/moz-screenshot.jpg" alt="" /><a href="http://agenaip.files.wordpress.com/2008/09/tav_pit.gif"><img class="alignright size-full wp-image-33" title="tav_pit" src="http://agenaip.files.wordpress.com/2008/09/tav_pit.gif?w=455" alt=""   /></a></p>
<p>sfida il pc con le tabelline</p>
<p>segna il tuo punteggio migliore</p>
<p>&#8230;e poi dimmi cosa ne pensi!</p>
<p>clicca sul link:</p>
<p><a href="http://www.matematicamente.it/giochi_e_gare/gioca_con_la_matematica/tabelline:_sfida_il_computer_200708261074/">Tabelline: sfida il computer</a></p>
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		<title>teorema di Pitagora</title>
		<link>http://agenaip.wordpress.com/2008/09/19/teorema-di-pitagora/</link>
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		<pubDate>Fri, 19 Sep 2008 10:28:18 +0000</pubDate>
		<dc:creator>agenaip</dc:creator>
				<category><![CDATA[geometria]]></category>

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		<description><![CDATA[Guardatevi questo interessante video sul teorema di PItagora. Chissà che così non vi resti in mente una volta per tutte! Altrimenti lo rispiegheremo in classe per l&#8217;ennesima volta (si, è proprio una minaccia!)<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=agenaip.wordpress.com&amp;blog=4905965&amp;post=17&amp;subd=agenaip&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<span style="text-align:center; display: block;"><a href="http://agenaip.wordpress.com/2008/09/19/teorema-di-pitagora/"><img src="http://img.youtube.com/vi/wclHTvhoA7w/2.jpg" alt="" /></a></span>
<p>Guardatevi questo interessante video sul <strong>teorema di PItagora</strong>.</p>
<p>Chissà che così non vi resti in mente una volta per tutte!</p>
<p>Altrimenti lo rispiegheremo in classe per l&#8217;ennesima volta (<em>si, è proprio una minaccia!</em>)</p>
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		<title>i numeri</title>
		<link>http://agenaip.wordpress.com/2008/09/19/i-numeri/</link>
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		<pubDate>Fri, 19 Sep 2008 09:42:40 +0000</pubDate>
		<dc:creator>agenaip</dc:creator>
				<category><![CDATA[aritmetica]]></category>
		<category><![CDATA[matematica]]></category>

		<guid isPermaLink="false">http://agenaip.wordpress.com/?p=4</guid>
		<description><![CDATA[I numeri sono molto importanti e interessano tutta la nostra esistenza. Provate a pensare ad una vita senza numeri. Potrebbe funzionare?<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=agenaip.wordpress.com&amp;blog=4905965&amp;post=4&amp;subd=agenaip&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<div id="attachment_10" class="wp-caption aligncenter" style="width: 332px"><a href="http://agenaip.files.wordpress.com/2008/09/numeri2.jpg"><img class="size-full wp-image-10" title="numeri" src="http://agenaip.files.wordpress.com/2008/09/numeri2.jpg?w=455" alt=""   /></a><p class="wp-caption-text">dalla preistoria ai giorni nostri...</p></div>
<p style="text-align:center;">I numeri sono molto <strong>importanti </strong>e interessano tutta la nostra esistenza. Provate a pensare ad una vita senza numeri. Potrebbe funzionare?</p>
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			<media:title type="html">numeri</media:title>
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