RN.1 Ordering and Comparing Rational Numbers
Outcome:
1.3 ‐ Demonstrate an understanding of rational numbers by: comparing and ordering rational numbers; solving problems that involve operations on rational numbers. Do you know what a rational number is?
How about an irrational number?
What's the difference? Rational Numbers
Irrational Numbers Why might we want to learn more about rational numbers?
aka: ________________________________
Let's get some of our vocabulary straight...
0
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0
çü
0
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Use the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 exactly one time each to
create numbers that fit this ordering:
• Option 1: fraction < decimal < whole number < percent
• Option 2: fraction < decimal < fraction < whole number < percent
**you can use negatives
***don't forget what a percent means...
Show a picture to prove that you are right (see handout)
Show your values on a number line to prove you are right.
Let's recap so far...
A fraction can be written as a terminating or repeating decimal.
Any mixed number can be written as an improper fraction; so mixed numbers are rational numbers.
Any integer can be written as a fraction with the denominator of 1; so integers are rational numbers. Good Morning!
How was your weekend?
http://mathsnacks.com/numberrights­en.html
(copy and paste me into the brower!)
Place the following numbers on the number line. ­5
­4
­3
­2
­1
0
1
2
What's your strategy?
Try these:
p. 101 #s 5, 7, 25
3
4
5
?
?
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**Homework
What rational number does each letter represent?
A
­3
­2
D
­1
B
­2
0
1
­1
E2
0
C
1
Try these: p. 101 #s 8bd, 10ad, 12ach, 14ach, 23bd, 24bd **Quizzy next class
To hand in:
p. 102 #20
1. On your white board, write down 3 fractions (in any form) and 3 decimals
2. With your partner/group, order all of your numbers (all 12) on a number line
3. When you're done, switch white boards with another group.
Attachments
mms9_seeit_107.swf
mms9_seeit_115.swf