Math Foldable

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# Math Foldable - PowerPoint PPT Presentation

Math Foldable. Rational & Irrational Numbers. Each student will need two different colored sheets of paper. First, “hamburger fold” each sheet. Mark the center of the folded edge by making a second hamburger fold. Cut the first page from the left side to the center mark.

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## Math Foldable

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Presentation Transcript

### Math Foldable

Rational & Irrational

Numbers

• First, “hamburger fold” each sheet.
• Mark the center of the folded edge by making a second hamburger fold.
• Cut the first page from the left side to the center mark.
• Next, cut the remaining page from the right side to the center mark.
• Then insert the first page through the second page and staple at the top fold.
Divide each page in half from top to bottom with a line
• Label page 1-Definitions

(on the left side write)

• Rational number- a number that can be written as a fraction, a/b.
• Integers and certain decimals are rational numbers because they can be written as a fraction.
• All rational numbers can be written as a ratio of integers.
Page 1

(on the right side)

• Irrational number- is a number that cannot be written as a simple fraction.
• Irrational numbers are numbers that go on forever without repeating. They are also called non-terminating decimals

on the left side (rational)

• 0.75 = ¾
• 0.5 = 5/10
• 1.25 = 5/4
• 45 = 45/1
Right side-(irrational)
• Pi() is usually written as 3.14.
• The fraction 22/7 when divided out becomes 3.141592265358979(…) and continues forever.
• The square root of many numbers is irrational, some of these are 2, 3,5,6,7,8,10,11 as well as many others.