1. 仔细观看视频，复习有关四边形的词汇。Watch the video very carefully to review vocabulary related to quadrilaterals. Take notes or screenshots when needed, so you can finish the activity later on your own. 2. 在模板的每一个页上，根据拼音写汉字。Use to write the Chinese words according to the pinyin on each page. 3. 在每一个类别中，画出两个以上的例子。Use or to provide at least TWO examples under each category. 4. 录音讲解每一个例子。Use to read the categories and the examples below it.