October 12, 2011
Compound Inequalties
Jigsaw Activity: Compound Inequalities & Special Cases
Homework: Worksheet "Compound Inequalities & Special Cases"
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If x represents the age of a person (assuming x > 0):
1. write an inequality statement that represents
the people that can legally drive in CT.
2. write an inequality that describes who can NOT
become president of the U.S.
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Children & Seniors $10 per ticket Adults $25 per ticket
Children are 12 and under. Seniors are 65 and older.
Write an inequality that represents
the people who pay $10 per ticket
Write an inequality that represents the people who pay $25 per ticket
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Compound Inequalities
Consist of two inequality statements connected by AND or OR
A solution to an AND compound inequality must satisfy BOTH inequalities.
A solution to an OR compound inequality will only satisfy ONE of the inequalities.
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Compound Inequality...?
Yes
No
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Graph
Graph
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Solutions or Not Solutions?
3
­4
­7
2
7
How do we solve compound inequalities?
Or
Your Turn
Solve and Graph:
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And
Your Turn
Solve and Graph:
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October 13, 2011
Questions on Homework...?
Jigsaw Activity: Compound Inequalities & Special Cases
Homework: Worksheet "Compound Inequalities & Special Cases"
10
Please sit in your LETTER GROUP (Vertical Groups)
A
B
C
D
E
SS
DL
CK
BG
AE
JW
BT
IC
JA
NS
MD
CA
KS
RM
AH
RT
DJ
KM
JD
MJ
Please take out your homework. If you had any difficulties, ask your group to share their work in order to help find your errors.
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When you move to your NUMBER GROUP
Take only your pencil and clipboard with your:
­Homework
­Prior Knowledge Inventory
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When you move back to your LETTER GROUP
Take only your pencil and clipboard with your:
­Homework
­Prior Knowledge Inventory
­Lesson Plan
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Questions on Homework...?
(answers are on the back)
stop @ 1:22
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15
Jigsaw Activity: Compound Inequalities & Special Cases
LETTER GROUP
Objective 1:
Complete Prior­Knowledge Inventory, share answers and discuss differences within your group.
NUMBER GROUP
Objective 2:
Investigate a Compound Inequality Special Case with your group and decide on a unanimous CONCLUSION for your Special Case Objective 3:
Complete the Worksheet "Special Case: Lesson Plan" with your group
LETTER GROUP
Objective 4:
Teach your Special Case to the other group members
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Special Cases by Groups
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Solutions
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