Page 19 - English 11 | Games and Activities-9

THEME 9 APPENDIX

th
7 Let Me Explain 11 GRADE

OK … I hope this isn’t a silly question, but what does Fibonacci actually mean?

The Fibonacci numbers are a sequence of numbers. They go 1, 1, 2, 3, 5, 8 and so on. Do you see the sequence?
Do you see how it works?

I’m not sure.

OK, before we continue, does anybody have a question? Oh, lots of questions, I see. OK, we’ll go one at a time.
Yes?

Yes, let me explain. This sequence of numbers is important because we see it in many things. Fibonacci numbers
are common in geometry, they are common in nature, for example in plants. We see the sequence everywhere.

Could you give us some more examples?

OK. This is how it works. The first number is 1, then 1 again, then 2. The third number is the first number plus the
second number. The fourth number is the second number plus the third number: 1 plus 2 is 3. The fifth number is
the third number, 2, plus the fourth number, 3. So the fifth number in a Fibonacci sequence is 5.

Thank you. You talked about Fibonacci numbers in the lecture. Sorry, I don’t understand. Can you explain?

OK ... Well, we don’t have time right now, but I can bring more examples in for next class, OK?

No question is ever silly – it’s always good to ask. OK, it’s the name of a person. Fibonacci was a European
mathematician in the Middle Ages.

Ah! I think I understand now. But what about their importance? You said these were very important.

Of course. What do you want to know?

Ah, OK. Thanks. So, we know he was a person, but what are the Fibonacci numbers? I don’t get it.

Ortaöğretim Genel Müdürlüğü Öğretim Programları ve Ders Kitapları Daire Başkanlığı 180