2.1 Rational Numbers
21
Click here to load reader
-
Upload
mrs-lapage -
Category
Education
-
view
165 -
download
5
description
2.1 Comparing and Ordering Rational Numbers Lesson September 11 and 12 2014
Transcript of 2.1 Rational Numbers
2.1 Rational Numbers
1
September 12, 2014
We organize numbers into sets by properties...
Number Sense2.1. Comparing Rational Numbers
2.1 Rational Numbers
2
September 12, 2014
Natural Numbers
The positive counting numbers excluding
zero 1
2
17
13
123
617
36
2.1 Rational Numbers
3
September 12, 2014
Whole Numbers
The positive counting numbers
including zero
0
1
45
232
17
5
56799
2.1 Rational Numbers
4
September 12, 2014
Integers
Positive and negative whole
numbers including zero
-3
-2 -1
0
1
2
3
2.1 Rational Numbers
5
September 12, 2014
Rational Numbers
Includes fractions, regular counting numbers, negative numbers,
terminating decimals and repeating decimals.
03
2.1 Rational Numbers
6
September 12, 2014
Irrational Numbers
An irrational number is a number whose
decimal part goes on forever and ever without repeating.
e
2.1 Rational Numbers
7
September 12, 2014
Irrational
Rational
Integers
Whole
Natural
Irrational
2.1 Rational Numbers
8
September 12, 2014
Irrational
Rational
Integers
Whole
Natural
Irrational
Move each number to the innermost circle that it can be classified as a member of
Real Number Target
30617
1
2
2.1 Rational Numbers
9
September 12, 2014
Rational
Integers
Whole
Natural
Irrational
Integers
Real Number Target
2.1 Rational Numbers
10
September 12, 2014
Comparing Rationals
Is 45 or 2
3greater?
2.1 Rational Numbers
11
September 12, 2014
2.1 Rational Numbers
12
September 12, 2014
2.1 Rational Numbers
13
September 12, 2014
Comparing Rationals
Is 45 or 2
3greater?
2. Use equivalent fractions...
2.1 Rational Numbers
14
September 12, 2014
Question: How much pizza would you rather have...
12
of the pizza?
24 of the pizza?
2.1 Rational Numbers
15
September 12, 2014
Equivalent Fractions
It's the same!
2.1 Rational Numbers
16
September 12, 2014
Equivalent Fractions
To find equivalent fractions, multiply or divide the top and the bottom by the same number!
35
Let's find some equivalent fractions of...
2.1 Rational Numbers
17
September 12, 2014
Equivalent Fractions
To find equivalent fractions, multiply or divide the top and the bottom by the same number!
50100
Let's find some equivalent fractions of...
2.1 Rational Numbers
18
September 12, 2014
Equivalent Fractions
Find the missing number to make the fractions equivalent.
27
?35=
2.1 Rational Numbers
19
September 12, 2014
Equivalent Fractions
Find the missing number to make the fractions equivalent.
6?
3648=
2.1 Rational Numbers
20
September 12, 2014
Comparing Rationals
Is 45 or 2
3greater?
2. Use equivalent fractions...
2.1 Rational Numbers
21
September 12, 2014
Let's order the following rational numbers on a number line.
What are some strategies to help us?
1/2 3/4 1/4 4/8 2/4 0.2 6/8 4/4 7/8 1/3
1 10
