Math: Mr. Fibonacci and his sequence....

    Teaching interdisciplinary lessons is very important.  You want your students to connect their science and math with their history and language.  One way to do this is with a Fibonacci Sequence lesson(s).  First, have your students create a Fibonacci Sequence: 0, 1, 2, 3, 5, 8, 13, 21...
Then have your students identify some plants in nature which demonstrate a Fibonacci number. 

Here are some examples from the Internet, but it's fun to take kids outside to investigate these numbers for themselves!  In the event of nasty weather, go to the U.S. Department of Agriculture's Plants Database!
Examples:

Here is a picture of an ordinary cauliflower. Note how it is almost a pentagon in outline. Looking carefully, you can see a center point, where the florets are smallest. Look again, and you will see the florets are organized in spirals around this center in both directions.
How many spirals are there in each direction?