<p class="ql-block">一、动画</p><p class="ql-block"><span style="font-size: 18px;">london bridge is falling down</span> 、两只羊</p><p class="ql-block">二、音频</p><p class="ql-block">london bridge is falling down、两只羊</p><p class="ql-block">粉猪第一季</p><p class="ql-block">三、阅读</p> <p class="ql-block">四、英语学习情况</p> <p class="ql-block">1. Testing Bridge Design</p><p class="ql-block">道具准备：</p><p class="ql-block">2 plastic or paper cups</p><p class="ql-block">a large supply of coins</p><p class="ql-block">2 pieces of construction paper</p><p class="ql-block">Single Strip Bridge</p><p class="ql-block">Let's create a single strip bridge.</p><p class="ql-block"> It is made of a singe piece of paper （展示条状纸）and two cups. Help me place/put the strip paper on two cups.</p><p class="ql-block">Add one coin at a time/at once.</p><p class="ql-block"> The bridge is falling down/fell down/collapsed. This type of bridge isn't stable （稳固的）. It only can hold one coin.</p><p class="ql-block"><br></p><p class="ql-block">Folded Bridge</p><p class="ql-block">Let's create a folded bridge by folding a strip of paper horizontally. The folds are very narrow.</p><p class="ql-block">Let's place some coins on the folded bridge. Let's put more coins. Let's put all coins on it. Wow, it can hold all the coins. This type of bridge is more stable. It can hold more coins.</p><p class="ql-block">这个游戏后面没有玩完，不是特别配合，</p> <p class="ql-block">2. build a bridge with magnetic blocks</p><p class="ql-block"><br></p><p class="ql-block">Baby, would you like to use these magnetic blocks to build a bridge?</p><p class="ql-block"> Let us make a simple bridge, use these pile blocks to make 2 piers, then put the 2 big flat blocks on it as the deck. See, a bridge.</p><p class="ql-block"><br></p><p class="ql-block">A little Polar bear wants to go through the bridge? </p><p class="ql-block">Oh, but the deck is not high enough. But do you remember how the London bridge works? Yes, the deck can lift up. Let us lift the deck up. </p><p class="ql-block">Haha, the little Polar bear can go through now.</p> <p class="ql-block">3. Which one is quicker?</p><p class="ql-block">Come here, baby, let us play a game. </p><p class="ql-block">There are many balls in this bag. </p><p class="ql-block">Some are small, some are big.</p><p class="ql-block">Some are heavy, some are light. Let us have a race. You choose one ball, and I choose a ball too. Then we hold them at the same height. When I say go, we let them go at the same time. Let us see which will arrive at the ground first. </p><p class="ql-block">Got it?</p><p class="ql-block">Let the balls drop to the mat， So There will be no noise.</p><p class="ql-block">Here we go. You choose one. It is a golf ball. I choose one. It is a table tennis ball, it is lighter than golf ball. </p><p class="ql-block">Let us hold them at same height,as high as this table. 3 2 1, ready? set, go!</p><p class="ql-block">Haha, see, they arrive at the ground at</p><p class="ql-block"> the same time.</p><p class="ql-block">Now, let us play in another way. You still choose a ball, and I get this feather. Let us see which can arrive at the ground first. 3 2 1, reday, set, go!</p><p class="ql-block">See, the ball is the first.</p><p class="ql-block">This time, you get the tissue, I get the feather. Let us try again. 3 2 1, reday, set, go! which one is quicker? Yes, the tissue.</p><p class="ql-block">Interesting, right? Tissue and feather are both very light, and their surface is big, so the air can support them.</p><p class="ql-block">And the feather can get more support from the air, so it is slower than tissues.</p><p class="ql-block">这个游戏不方便拍照，所以没有照片。</p>