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.