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《水土流失的模拟实验》实验说课

参赛作者:黄志红

作品分类:小学-小学科学

浏览次数:436

所属学校:厦门市同安区祥...

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作品简介:
本实验选自苏教版小学科学,三年级上册第二单元《研究土壤》第七课《保护土壤》。本实验教学经过反复的研究及实践,对原有实验器材、活动进行整合、改造,利用乐高积木拼搭结构主体,自主设计制作研究一体式水土流失模拟仪,可以同时探究植被、地形坡度、降水量强度对土壤的影...
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	at javax.servlet.ServletRequestWrapper.isAsyncStarted(ServletRequestWrapper.java:380)
	at org.apache.catalina.core.ApplicationDispatcher.unwrapRequest(ApplicationDispatcher.java:738)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:711)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:428)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:360)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:297)
	at net.paoding.rose.web.portal.impl.WindowTask.run(WindowTask.java:81)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)