幼儿园科学活动：小蚂蚁力气大.doc
幼儿园小班科学活动：小蚂蚁有非常大的力量1.激发幼儿对自然的好奇心，培养对探究和寻求知识的兴趣。2.理解大合作的原则，观察蚂蚁的形状。活动预备课件，自制海绵豆（儿童数量的2-3倍）和小篮子。活动程序首先，引入谜语导致了这一主题，从而引起了幼儿的兴趣。看着芝麻看着黑糯米，不怕陡峭的山路，估计掉进火锅了。教师指导小孩猜想动物（蚂蚁）的名字，这引起了小孩对学习的兴趣并引出了主题。其次，展示蚂蚁的课件并指导小孩说出观察到的蚂蚁的形状特征。教师的咨询题：（1）您在哪里看到小蚂蚁？（2）蚂蚁长什么样？（3）小蚂蚁如何携带食物？为什么？通过观看课件来听故事，让小孩大胆地说出来，回忆起所听到的情况，并及时鼓舞和引导教师。第三，教师咨询：像小蚂蚁，我们应该学什么？让小孩们明白团结是强大的真理。第四，游戏：“蚂蚁搬豆”稳固了理解。教师扮演蚂蚁母亲，幼儿扮演小蚂蚁，站在球场的尽头。游戏开场时，教师说：“小孩们，我们去搬豆子为冬天做预备！ “小蚂蚁能够自由地（也许不能）钻过橡皮筋，爬过纸板箱和垫子，跑到田野的另一头，捡起一个小豆子然后跑回家，将这些豆子放入小篮子。重复此过程，直到将豆完全取出。完毕部分：学会将蚂蚁移出活动室。<!DOCTYPE HTML PUBLIC "-/W3C/DTD HTML 4.01 Transitional/EN" ":/.w3.org/TR/html4/loose.dtd"><html> <head> <title>werkzeug.exceptions.Exception.wrap.lt;localsnewcls: 400 Bad Request: KeyError: 'text' /Werkzeug Debugger</title> <link rel="stylesheet" href="?_debugger_=yescmd=resourcef=style.css" type="text/css"> <!- We need to make sure this has a favicon so that the debugger does not by accident trigger a request to /favicon.ico which might change the application state. -> <link rel="shortcut icon" href="?_debugger_=yescmd=resourcef=console.png"> <script src="?_debugger_=yescmd=resourcef=jquery.js"></script> <script src="?_debugger_=yescmd=resourcef=debugger.js"></script> <script type="text/javascript"> var TRACEBACK=140186987319984, CONSOLE_MODE=false, EVALEX=true, EVALEX_TRUSTED=false, SECRET="FIG0pWAnh4FeCdjA1Mx2" </script> </head> <body style="background-color: #fff"> <div class="debugger"><h1>werkzeug.exceptions.BadRequestKeyError</h1><div class="detail"> <p class="errormsg">werkzeug.exceptions.Exception.wrap.lt;localsnewcls: 400 Bad Request: KeyError: 'text'</p></div><h2 class="traceback">Traceback <em>(most recent call last)</em></h2><div class="traceback"> <ul><li><div class="frame" id="frame-140186987319760"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask/app.py"</cite>, line <em class="line">2309</em>, in <code class="function">_call_</code></h4> <div class="source"><pre class="line before"><span class="ws"></span> </pre><pre class="line before"><span class="ws"> </span>def _call_(self, environ, start_response):</pre><pre class="line before"><span class="ws"> </span>The WSGI server calls the Flask application object as the</pre><pre class="line before"><span class="ws"> </span>WSGI application. This calls :meth:wsgi_app which can be</pre><pre class="line before"><span class="ws"> </span>wrapped to applying middleware.</pre><pre class="line current"><span class="ws"> </span>return self.wsgi_app(environ, start_response)</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"> </span>def _repr_(self):</pre><pre class="line after"><span class="ws"> </span>return 'lt;%s %r' % (</pre><pre class="line after"><span class="ws"> </span>self._class_._name_,</pre><pre class="line after"><span class="ws"> </span>self.name,</pre></div></div><li><div class="frame" id="frame-140186987320376"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask/app.py"</cite>, line <em class="line">2295</em>, in <code class="function">wsgi_app</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span>try:</pre><pre class="line before"><span class="ws"> </span>ctx.push()</pre><pre class="line before"><span class="ws"> </span>response=self.full_dispatch_request()</pre><pre class="line before"><span class="ws"> </span>except Exception as e:</pre><pre class="line before"><span class="ws"> </span>error=e</pre><pre class="line current"><span class="ws"> </span>response=self.handle_exception(e)</pre><pre class="line after"><span class="ws"> </span>except:</pre><pre class="line after"><span class="ws"> </span>error=sys.exc_info()1</pre><pre class="line after"><span class="ws"> </span>raise</pre><pre class="line after"><span class="ws"> </span>return response(environ, start_response)</pre><pre class="line after"><span class="ws"> </span>finally:</pre></div></div><li><div class="frame" id="frame-140186987320656"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask_cors/extension.py"</cite>, line <em class="line">161</em>, in <code class="function">wrapped_function</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span># Wrap exception handlers with cross_origin</pre><pre class="line before"><span class="ws"> </span># These error handlers will still respect the behavior of the route</pre><pre class="line before"><span class="ws"> </span>if options.get('intercept_exceptions', True):</pre><pre class="line before"><span class="ws"> </span>def _after_request_decorator(f):</pre><pre class="line before"><span class="ws"> </span>def wrapped_function(*args, *kwargs):</pre><pre class="line current"><span class="ws"> </span>return cors_after_request(app.make_response(f(*args, *kwargs)</pre><pre class="line after"><span class="ws"> </span>return wrapped_function</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"> </span>if hasattr(app, 'handle_exception'):</pre><pre class="line after"><span class="ws"> </span>app.handle_exception=_after_request_decorator(</pre><pre class="line after"><span class="ws"> </span>app.handle_exception)</pre></div></div><li><div class="frame" id="frame-140186987320040"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask/app.py"</cite>, line <em class="line">1741</em>, in <code class="function">handle_exception</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span># if we want to repropagate the exception, we can attempt to</pre><pre class="line before"><span class="ws"> </span># raise it with the whole traceback in case we can do that</pre><pre class="line before"><span class="ws"> </span># (the function was actually called from the except part)</pre><pre class="line before"><span class="ws"> </span># otherwise, we just raise the error again</pre><pre class="line before"><span class="ws"> </span>if exc_value is e:</pre><pre class="line current"><span class="ws"> </span>reraise(exc_type, exc_value, tb)</pre><pre class="line after"><span class="ws"> </span>else:</pre><pre class="line after"><span class="ws"> </span>raise e</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"> </span>self.log_exception(exc_type, exc_value, tb)</pre><pre class="line after"><span class="ws"> </span>if handler is None:</pre></div></div><li><div class="frame" id="frame-140186987402744"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask/_compat.py"</cite>, line <em class="line">35</em>, in <code class="function">reraise</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span>from io import StringIO</pre><pre class="line before"><span class="ws"></span> </pre><pre class="line before"><span class="ws"> </span>def reraise(tp, value, tb=None):</pre><pre class="line before"><span class="ws"> </span>if value._traceback_ is not tb:</pre><pre class="line before"><span class="ws"> </span>raise value.with_traceback(tb)</pre><pre class="line current"><span class="ws"> </span>raise value</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"> </span>implements_to_string=_identity</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"></span>else:</pre><pre class="line after"><span class="ws"> </span>text_type=unicode</pre></div></div><li><div class="frame" id="frame-140186987401624"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask/app.py"</cite>, line <em class="line">2292</em>, in <code class="function">wsgi_app</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span>ctx=self.request_context(environ)</pre><pre class="line before"><span class="ws"> </span>error=None</pre><pre class="line before"><span class="ws"> </span>try:</pre><pre class="line before"><span class="ws"> </span>try:</pre><pre class="line before"><span class="ws"> </span>ctx.push()</pre><pre class="line current"><span class="ws"> </span>response=self.full_dispatch_request()</pre><pre class="line after"><span class="ws"> </span>except Exception as e:</pre><pre class="line after"><span class="ws"> </span>error=e</pre><pre class="line after"><span class="ws"> </span>response=self.handle_exception(e)</pre><pre class="line after"><span class="ws"> </span>except:</pre><pre class="line after"><span class="ws"> </span>error=sys.exc_info()1</pre></div></div><li><div class="frame" id="frame-140186987404984"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask/app.py"</cite>, line <em class="line">1815</em>, in <code class="function">full_dispatch_request</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span>request_started.send(self)</pre><pre class="line before"><span class="ws"> </span>rv=self.preprocess_request()</pre><pre class="line before"><span class="ws"> </span>if rv is None:</pre><pre class="line before"><span class="ws"> </span>rv=self.dispatch_request()</pre><pre class="line before"><span class="ws"> </span>except Exception as e:</pre><pre class="line current"><span class="ws"> </span>rv=self.handle_user_exception(e)</pre><pre class="line after"><span class="ws"> </span>return self.finalize_request(rv)</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"> </span>def finalize_request(self, rv, from_error_handler=False):</pre><pre class="line after"><span class="ws"> </span>Given the return value from a view function this finalizes</pre><pre class="line after"><span class="ws"> </span>the request by converting it into a response and invoking the</pre></div></div><li><div class="frame" id="frame-140186987404536"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask_cors/extension.py"</cite>, line <em class="line">161</em>, in <code class="function">wrapped_function</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span># Wrap exception handlers with cross_origin</pre><pre class="line before"><span class="ws"> </span># These error handlers will still respect the behavior of the route</pre><pre class="line before"><span class="ws"> </span>if options.get('intercept_exceptions', True):</pre><pre class="line before"><span class="ws"> </span>def _after_request_decorator(f):</pre><pre class="line before"><span class="ws"> </span>def wrapped_function(*args, *kwargs):</pre><pre class="line current"><span class="ws"> </span>return cors_after_request(app.make_response(f(*args, *kwargs)</pre><pre class="line after"><span class="ws"> </span>return wrapped_function</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"> </span>if hasattr(app, 'handle_exception'):</pre><pre class="line after"><span class="ws"> </span>app.handle_exception=_after_request_decorator(</pre><pre class="line after"><span class="ws"> </span>app.handle_exception)</pre></div></div><li><div class="frame" id="frame-140186987403920"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask/app.py"</cite>, line <em class="line">1718</em>, in <code class="function">handle_user_exception</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span>return self.handle_exception(e)</pre><pre class="line before"><span class="ws"></span> </pre><pre class="line before"><span class="ws"> </span>handler=self._find_error_handler(e)</pre><pre class="line before"><span class="ws"></span> </pre><pre class="line before"><span class="ws"> </span>if handler is None:</pre><pre class="line current"><span class="ws"> </span>reraise(exc_type, exc_value, tb)</pre><pre class="line after"><span class="ws"> </span>return handler(e)</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"> </span>def handle_exception(self, e):</pre><pre class="line after"><span class="ws"> </span>Default exception handling that kicks in when an exception</pre><pre class="line after"><span class="ws"> </span>occurs that is not caught. In debug mode the exception will</pre></div></div><li><div class="frame" id="frame-140186987403304"> <h4>File <cite class="filename">"/root/anaconda3/lib/python3.7/site-packages/flask/_compat.py"</cite>, line <em class="line">35</em>, in <code class="function">reraise</code></h4> <div class="source"><pre class="line before"><span class="ws"> </span>from io import StringIO</pre><pre class="line before"><span class="ws"></span> </pre><pre class="line before"><span class="ws"> </span>def reraise(tp, value, tb=None):</pre><pre class="line before"><span class="ws"> </span>if value._traceback_ is not tb:</pre><pre class="line before"><span class="ws"> </span>raise value.with_traceback(tb)</pre><pre class="line current"><span class="ws"> </span>raise value</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"> </span>implements_to_string=_identity</pre><pre class="line after"><span class="ws"></span> </pre><pre class="line after"><span class="ws"></span>else:</pre><pre class="line after"><span class="ws"> </span>text_type=unicode</pre></div></div><li><div class="frame" id="frame-14018698
