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《动起来与停下来》实验说课

参赛作者:陈东岩

作品分类:小学-小学科学

浏览次数:358

所属学校:厦门市同安区新...

评论次数:0

作品简介:
本实验说课选自苏教版小学科学,二年级上册,第三单元《用力以后》,第3课《动起来与停下来》。通过教学实践以及联系学生本单元所学知识,本人对玩小车这一实验进行改进,补充了实验器材,优化了实验方案,尽可能使这一实验更加完善。改进后需要用到的实验器材:小车、重物、铁...
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	at javax.servlet.ServletRequestWrapper.isAsyncStarted(ServletRequestWrapper.java:380)
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	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)
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	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)