These passages are from a book that explains unusual mathematical words and
facts. The first text, “F is for Fibonacci,” describes the Fibonacci sequence, an
interesting number pattern often found in nature, art, architecture, music, and
poetry. This famous sequence was discovered by an Italian mathematician
named Fibonacci in the 1200s. The first numbers in the sequence are 1, 2, 3, 5,
8, 13, 21, 34, 55, 89, and 144. In the Fibonacci sequence, when you add one
number with the next, you get the following number in the sequence. The
passage “N is for Nature” tells how to see the Fibonacci sequence in pinecones
by coloring parts of the pinecone. This pattern also appears in such things as
sunflower seeds, pineapples, and artichokes.Key Words
architecture: the style and design of
buildings
gradual: happening or changing slowly over
a long time
infinity: space or distance that has no limits
or end
numerals: written signs that represent
numbers
spirals: shapes that go around and around
as they go up
steep: rising or falling sharply
Academic Words
constant = happening regurarly or all time
illustrate = explain or make something clear by giving examples
sequence= a series of related events, actions, or numbers order
unique= the only one of its type
Highlighted Words
producing: having
figure out: think about a problem or situation until you find the anser or understand what has happened
petals: the brightly colored parts of a flower
petals: the brightly colored parts of a flower
maintains: continues in the same way proportion, the amount of something compared to something else
Making Comparisons: - er than and as...as
Certain kinds of words are useful when you want to describe how two things are the same or different. An adjective is a word that describes a
noun. Comparative adjectives compare two things.
For most one-syllable adjectives, you add - r or -er to form a comparative adjective.
For two-syllable adjectives ending in a y, you change y to i and add -er.
The word than ususally follows acomparatvie.
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