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【简答题】
课堂实录：长方形和正方形的特征。 张老师：你是如何验证正方形的四个角都是直角的？ 学生1：我是这样比的（边演示，用三角板上的直角与正方形的四个角一一比较）。 张老师：都是这样比的吗？ 学生显然没有完全明白老师的意思，异口同声地回答：是的。 教师注意到只有两个学生（生2和生3）没有随声附和。就追问了一句：绝大部分同学认为要比四次，你们认为呢？ 学生2：只要比两次就行了。 张老师：怎么比？ 学生2：（边演示边讲解）先把正方形对折，然后再用三角板上的直角与正方形的两个角比较。 学生3：我只要比一次就行了。 教师让学生3操作给大家看。 学生3：把正方形先横着对折一次，再竖着对折一次。原来的四个角就全部重合在一起了，所以只要比一次就行了。 在随后动手验证“正方形每条边都相等”时，学生很自然地就想到分别沿正方形的两条对角线对折，把四条边折到一起去，看是不是完全重合。 教师通过提问引导启发学生思考，采用多种方法提升学生思维能力。张老师在教学中使用了什么教学方法？
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参考答案：
举一反三
【单选题】We looked at the sky through the _____.
A.
microphone
B.
microscope
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【简答题】一、句子填空:阅读下列句子,根据句子内容,在空白处用括号中所给词的正确形式填空。 1. For thousands of years, we have looked up at the __________ night sky and wondered if there were worlds like ours somewhere out there. (star) 2. The very __...
查看完整题目与答案
【简答题】In ancient Egypt，the pharaoh（法老）treated the poor message runner like a prince when he arrived at the palace, if he brought good news. However，if the exhausted runner had the misfortune to bring the ph...
查看完整题目与答案
【简答题】One day a boy was walking along the street. Suddenly he stopped and looked up into the sky.A young man passed by him.When he saw the boy,he felt curious and look up,too.Just then a girl came up and sa...
查看完整题目与答案
【简答题】In ancient Egypt, the pharaoh（法老）treated the poor message runner like a prince when he arrived at the palace, if he brought good news. However, if the exhausted runner had the misfortune to bring the ...
查看完整题目与答案
【简答题】完形填空。 One day a boy was walking along the street.Suddenly he 1 and looked up into the sky. A young man passed by him. When he saw the boy,he felt curious (好奇的) 2 looked up, too. Just then a girl came ...
查看完整题目与答案
【单选题】施工项目年度成本分析的重点是（ ）。
A.
通过实际成本与目标成本的对比，分析目标成本落实的情况
B.
通过对技术组织措施执行效果的分析，寻求更加有效的节约途径
C.
通过实际成本与计划成本的对比，分析成本降低水平
D.
针对下一年度进展情况，规划切实可行的成本管理措施
查看完整题目与答案
【简答题】In ancient Egypt, the pharaoh(法老)treated the poor message runner like a prince when he arrived at the palace, if he brought good news. However, if the exhausted runner had the misfortune to bring the ...
查看完整题目与答案
【单选题】某人为了5年后能从银行取出10000元,在复利年利率4%的情况下,当前应该存入( )元。
A.
8333.33
B.
6219.27
C.
7219.27
D.
8219.93
查看完整题目与答案
【简答题】阅读理解 It was a beautiful spring morning. There were no clouds in the sky, and the sun was warm but not hot. Mr Black saw an old man at the bus stop with a big, strong, black umbrella (伞) in his hand. M...
查看完整题目与答案
相关题目：
【单选题】We looked at the sky through the _____.
A.
microphone
B.
microscope
查看完整题目与答案
【简答题】一、句子填空:阅读下列句子,根据句子内容,在空白处用括号中所给词的正确形式填空。 1. For thousands of years, we have looked up at the __________ night sky and wondered if there were worlds like ours somewhere out there. (star) 2. The very __...
查看完整题目与答案
【简答题】In ancient Egypt，the pharaoh（法老）treated the poor message runner like a prince when he arrived at the palace, if he brought good news. However，if the exhausted runner had the misfortune to bring the ph...
查看完整题目与答案
【简答题】One day a boy was walking along the street. Suddenly he stopped and looked up into the sky.A young man passed by him.When he saw the boy,he felt curious and look up,too.Just then a girl came up and sa...
查看完整题目与答案
【简答题】In ancient Egypt, the pharaoh（法老）treated the poor message runner like a prince when he arrived at the palace, if he brought good news. However, if the exhausted runner had the misfortune to bring the ...
查看完整题目与答案
【简答题】完形填空。 One day a boy was walking along the street.Suddenly he 1 and looked up into the sky. A young man passed by him. When he saw the boy,he felt curious (好奇的) 2 looked up, too. Just then a girl came ...
查看完整题目与答案
【单选题】施工项目年度成本分析的重点是（ ）。
A.
通过实际成本与目标成本的对比，分析目标成本落实的情况
B.
通过对技术组织措施执行效果的分析，寻求更加有效的节约途径
C.
通过实际成本与计划成本的对比，分析成本降低水平
D.
针对下一年度进展情况，规划切实可行的成本管理措施
查看完整题目与答案
【简答题】In ancient Egypt, the pharaoh(法老)treated the poor message runner like a prince when he arrived at the palace, if he brought good news. However, if the exhausted runner had the misfortune to bring the ...
查看完整题目与答案
【单选题】某人为了5年后能从银行取出10000元,在复利年利率4%的情况下,当前应该存入( )元。
A.
8333.33
B.
6219.27
C.
7219.27
D.
8219.93
查看完整题目与答案
【简答题】阅读理解 It was a beautiful spring morning. There were no clouds in the sky, and the sun was warm but not hot. Mr Black saw an old man at the bus stop with a big, strong, black umbrella (伞) in his hand. M...
查看完整题目与答案
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