请你做出我上传题目的讲解视频。在视觉效果上我希望更适合中国小学三年级学生理解学习。并且希望可以通过视频让学生感觉到趣味从而提升兴趣。---**Textual Information:** (22) 爸爸打算在自己的小院里围出一块长方形或正方形菜地。 ① 爸爸准备靠两面墙去围这块菜地，他把12米长的篱笆分成2段（如图），用列表的方法找出了如下几种方案： **Chart/Diagram Description:** * **Type:** Simple diagram illustrating a rectangular area enclosed by two existing walls and two sections of fencing. * **Main Elements:** * Two perpendicular walls forming a corner. * Two sections of fencing connected to the walls and meeting at the corner opposite the walls, forming a rectangle (or square). * The fencing sections are depicted as vertical stakes with horizontal rails, like a wooden fence or railing. * The enclosed area is implied to be a vegetable garden ("菜地"). **Table Content:** | 篱笆长 (米) | 第一段长 (米) | 第二段长 (米) | 菜地面积 (平方米) | | :---------- | :------------ | :------------ | :---------------- | | 12 | 1 | 11 | 11 | | | 2 | 10 | 20 | | | 3 | 9 | 27 | | | 4 | 8 | 32 | | | 5 | 7 | 35 | | | 6 | 6 | 36 | **Other Relevant Text:** 仔细观察表中的数据，你发现了什么规律？