Difference between "今日の会話これ意味わかりました？" and "今日の会話の意味わかりました？""


Would someone be so nice as to explain to me the fine nuances and subtleties
between the two sentences:

  1. 今日の会話 これ 意味わかりました？ (Source: [Lower intermediate season 4, lesson 1](https://www.japanesepod101.com/lesson/lower-intermediate-lesson-s4-1-giving-and-receiving-in-japanese-introduction/?lp=137))
  2. 今日の会話 の 意味わかりました？ (Source: Myself)




I haven't listened to the podcast but from the script

> Naomi: ピーターさん、今日の会話これ意味わかりました？ **ダイアログの中に下駄箱を開けると、手紙が落ちる。**
>
> Peter: So I think I understand. In the dialog script it says, he opens the
> door to his shoe box, and out falls a letter. But shoe box is really shoe
> box as in ???(00: 07: 22) the English speaker would know it. Such as a box
> ???(00: 07: 25). It’s more like a little locker that you put your shoes in.

今日の会話これ意味わかりました? means 今日の会話の中 **で/の** これ **の** 意味わかりました?= _In today's
conversation, did you see the meaning of this?_

これ refers specifically to the bold part in the above quote. Naomi asks this
because shoeboxes as found in Japan (with doors) is not common abroad.

今日の会話(の)意味わかりました? would mean _Did you understand the whole conversation of
today?_

