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Do Now
Write if the following numbers are rational numbers, irrational
numbers, whole numbers and integers. EXPLAIN WHY!!! (Hint: look
at your notes from yesterday and read the definitions)
1.
2.
3.
4.
5.
6.
0.3333…
1/8
-6
5.9875…
3.2
5/9
7. 132
8. 18.57
9. -13
10. 6.88888….
INEQUALITY
A mathematical sentence
formed by placing an inequality
symbol between two
expressions
INEQUALITY
Inequalities
Equals
< > =
…Or Equal To
Less than or
equal to
Greater than or equal to
Make a poster
• Divide your poster into four parts:
–>
–<
–≥
–≤
• For each section:
– write the definition of the word
– Draw the sign
– Write an example with numbers and an example with words.
Compare With number line
Which number is bigger? Look at the number line to decide.
1. -3 ____ 2
2. 9 _____-8
3. -5 ____-7
practice
1.
2.
3.
4.
5.
-3 ____ 3
0.57 ____ 0.85
1/2 ____ -1/2
2 ____ -176
0 ____-0.88
THINK, write,
pair, share
When comparing -5 to -7, which inequality sign
would you use. Which number is larger
and why?
Exit Ticket
1. What is the definition of inequality in your
own words?
2. What are the four inequality signs (write
the symbol and the name)?
Compare using inequality signs:
3. -6 ____ 5
4. 7 ____ -3
5. -2 ____-1