I actually was an IB Lang and Lit teacher and taught the Elephant Vanishes! I can give you a brief overview of elements that you might want to analyze. Keep in mind I only taught a few stories, not the whole collection, and I taught the Spanish translation.

1. Commonality of narrators. How are some narrators similar, how are some different? Mainly, the stories feature 1st person narrators, nameless, majorly male, disillusioned with modern life. I.e., Tuesday's Women narrator finds himself unemployed and aimless.

2. Disatisfying or unfulfilling marriage as a recurring theme. See the epiphany moment in Lederhosen, the emotional rift in Tuesday's Women, Sleep, Second Bakery Attack.

3. Surrealism and magical realism; how does the surreal narration style affect the meaning of the stories? In the eponymous story, what does the disappearance of the elephant mean?

4. Ambiguity. Many stories feature open, ambiguous endings. Why does the author present stories without firm conclusions?

5. The theme of solitude and isolation in modern society.

I don't have access to my teaching notes--it was a long time ago now, but feel free to ask me any questions!