Lesson: Introduction to Inequalities
Presentation
•
Mathematics
•
9th Grade
•
Medium
+3
Standards-aligned
Christopher Gassler
Used 10+ times
FREE Resource
4 Slides • 8 Questions
1
Multiple Choice
YES I have my notebook out
No, I know it means a bad grade
2
Objective: Understand and graph inequalities
3
Multiple Select
WARM-UP
Which statements are true when comparing -13 and -4.
-4 > -13
4
x < 5: "x is less than 5" so x is 4, 3, 2, 1 ,0, -1, -2 ...
x ≤ 5: "x is less than or equal to 5" so x is 5, 4, 3, 2, 1 ,0, -1, -2 ...
x > 5: "x is greater than 5" so x is 6, 7, 8, 9, 10, 11, 12 ...
x ≥ 5: "x is greater than or equal to 5" so x is 5, 6, 7, 8, 9, 10, 11, 12 ...
5
Match
Match the following inequalities with their translations.
x < 5
x > 5
x < -5
x > -5
x is less than five
x is greater than five
x is less than negative five
x is greater than negative five
x is less than five
x is greater than five
x is less than negative five
x is greater than negative five
6
GRAPHICAL REPRESENTATIONS
Example: x = 6
Example: x < 6
Example: x ≤ 6
Example: x > 6
Example: x ≥ 6
7
Match
Match the following word descriptions with their graph.
x is less than 12
x is greater than 12
x is less than or equal to 12
x is greater than or equal to 12
x is less than 12
x is greater than 12
x is less than or equal to 12
x is greater than or equal to 12
8
Match
Match the graph with the inequality.
x > 16
x < 16
x ≥ 16
x ≤ 16
x > 16
x < 16
x ≥ 16
x ≤ 16
9
Circle rules are the same.
You may want to rewrite it but it has to 'eat' the same number or variable.
10
Multiple Select
Which inequalities represent the graph?
x < -4
x > -4
-4 > x
-4 < x
11
Match
Match the Inequality with its graph.
-5 < x
-5 > x
-5 ≥ x
-5 ≤ x
-5 < x
-5 > x
-5 ≥ x
-5 ≤ x
12
Open Ended
Take a picture of the notes you took for this lesson.
YES I have my notebook out
No, I know it means a bad grade
Show answer
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MULTIPLE CHOICE
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