Hi Miriam:
These are great examples. Real world examples (stories) are almost always engaging, interesting, and catch the attention of students.
Having good back up will allow us to bring something different into the lesson if time permits, if studenjts are losing focus, or if what we had planned can't happen for whatever reason. It's like having just a bit more class material available than is needed, but if needed, we're prepared.
Regards, Barry
