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。---**Problem Description:** 小军家厨房要铺地砖 (如下图), 地面长3米, 宽2米。他家选用的是边长5分米的的正方形地砖铺厨房地面, 需要多少块? **Character Information:** 小军是用这种方法算出他家需要购买的地砖的块数: **Calculations shown by Xiao Jun:** 3米=30分米 2米=20分米 ① 30÷5=6 (块) ② 20÷5=4 (块) ③ 6×4=24 (块) **Instruction:** 请把上面算式中①和②的想法画在下面的图中。 **Diagram Description:** Type: Rectangle representing a floor plan. Dimensions: - Length: Labeled as 3米 (3 meters) with a horizontal double-headed arrow indicating the length. - Width: Labeled as 2米 (2 meters) with a vertical double-headed arrow indicating the width. Purpose: The diagram represents the kitchen floor where the calculations ① and ② need to be illustrated. Calculation ① (30÷5=6) implies dividing the 3-meter length into 6 segments. Calculation ② (20÷5=4) implies dividing the 2-meter width into 4 segments. This corresponds to laying tiles with a side length of 5 decimeters (0.5 meters) along each dimension.

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