Student 1: Hello, Tutor? I'm supposed to text you. Is this the right number?

Tutor: Yes, this is right.

Student 1: Yay! So, I'm really struggling with multiplying imaginary numbers right now. I've got most of it but I keep getting confused when it's like 5i squared. Could you help?

Tutor: Uh, sure, when it's 5i squared, only the i is squared. So, because i is the square root of -1, squaring it reverses that, making i equal to -1. So you get 5 times -1. Or if that was too confusing, if you have something like 5i squared, just get rid of the i and make the 5 negative.

Student 1: Oh my gosh thank you, that makes so much sense now! You're the best!

Tutor: Uh...

Student 1: Thank you so much!!

Tutor: You're welcome?

Student 2: Hey! Why am I Student 2?!

Tutor: Because you are the second person to text me.

Student 2: Alright, look, I'm just having trouble remembering the order of the classification levels.

Tutor: I assume you mean science, right?

Student 2: *sarcastically* No, I mean breadllamology.

Tutor: I'm just going to assume you mean science.

Student 2: That would probably be best.

Tutor: You could use a mnemonic device.

Student 2: A memanemanemonic what now?

Tutor: A mnemonic device is a saying that each word's first letter is the same first letter in a list of things that are harder to remember. For example, the orders of classification are Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species. So a mnemonic device for that would be Do Koalas Prefer Chocolate Or Fruit, Generally Speaking? If you don't like that, you can come up with one yourself.

Student 2: That was a long text message, but I see your point. Thanks, I'll keep it in mind.

Tutor: No problem.

Tutor: Hello? You're the other student I'm supposed to tutor. Is this the right person?

Student 3: Yes.

Tutor: Well, uh, do you need help with anything right now?

Student 3: No.

Tutor: Are you sure?

Student 3: Yes.

Tutor: Oh, well text me if you do need help.

Student 3: Alright.