Transcript 1 - MathChow

Algebra 2
Week #1A
Section 1
Just so you know.
Week #1A – Section 1
GOAL: To review integer arithmetic rules and true/false statements.
(Preliminary Review) CA ALGEBRA 1 STANDARD 1.0: To use the arithmetic
properties of integers, and to demonstrate that assertions are true or false.
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WARMUP QUESTIONS
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Evaluate:
1.
22 + 42 = ______
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2.
52 + (-2)2 = ______
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3.
(-1)2 + 12 = ______
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4.
(-5)2 + 0 = _____
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5.
- 6 – (- 5) = ________
Week #1A – Section 1
GOAL: To review integer arithmetic rules and true/false statements.
(Preliminary Review) CA ALGEBRA 1 STANDARD 1.0: To use the arithmetic
properties of integers, and to demonstrate that assertions are true or false.
•
WARMUP QUESTIONS
•
•
Evaluate:
1.
22 + 42 = 20
•
2.
52 + (-2)2 = ______
•
3.
(-1)2 + 12 = ______
•
4.
(-5)2 + 0 = _____
•
5.
- 6 – (- 5) = ________
Week #1A – Section 1
GOAL: To review integer arithmetic rules and true/false statements.
(Preliminary Review) CA ALGEBRA 1 STANDARD 1.0: To use the arithmetic
properties of integers, and to demonstrate that assertions are true or false.
•
WARMUP QUESTIONS
•
•
Evaluate:
1.
22 + 42 = 20
•
2.
52 + (-2)2 = 29
•
3.
(-1)2 + 12 = ______
•
4.
(-5)2 + 0 = _____
•
5.
- 6 – (- 5) = ________
Week #1A – Section 1
GOAL: To review integer arithmetic rules and true/false statements.
(Preliminary Review) CA ALGEBRA 1 STANDARD 1.0: To use the arithmetic
properties of integers, and to demonstrate that assertions are true or false.
•
WARMUP QUESTIONS
•
•
Evaluate:
1.
22 + 42 = 20
•
2.
52 + (-2)2 = 29
•
3.
(-1)2 + 12 = 2
•
4.
(-5)2 + 0 = ____
•
5.
- 6 – (- 5) = ________
Week #1A – Section 1
GOAL: To review integer arithmetic rules and true/false statements.
(Preliminary Review) CA ALGEBRA 1 STANDARD 1.0: To use the arithmetic
properties of integers, and to demonstrate that assertions are true or false.
•
WARMUP QUESTIONS
•
•
Evaluate:
1.
22 + 42 = 20
•
2.
52 + (-2)2 = 29
•
3.
(-1)2 + 12 = 2
•
4.
(-5)2 + 0 = 25
•
5.
- 6 – (- 5) = ________
Week #1A – Section 1
GOAL: To review integer arithmetic rules and true/false statements.
(Preliminary Review) CA ALGEBRA 1 STANDARD 1.0: To use the arithmetic
properties of integers, and to demonstrate that assertions are true or false.
•
•
•
Evaluate:
1.
22 + 42 = 20
•
2.
52 + (-2)2 = 29
•
3.
(-1)2 + 12 = 2
•
4.
(-5)2 + 0 = 25
•
5.
- 6 – (- 5) = -1
WARMUP QUESTIONS
Week #1A Section #1 Notes
Integers and True/False Statements
Vocabulary
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Integers
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Whole numbers – positive, negative, or zero.
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Evaluate
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Plug in a number, and do the arithmetic.
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
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1. WHAT are the rules for integer arithmetic?
Multiply/Divide
1. Same signs:
2. Different signs:
Add/Subtract
1. Same signs:
2. Different signs:
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
•
•
•
•
•
•
•
1. WHAT are the rules for integer arithmetic?
Multiply/Divide
1. Same signs: Positive answer
2. Different signs: Negative answer
Add/Subtract
1. Same signs:
2. Different signs:
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
•
•
•
1. WHAT are the rules for integer arithmetic?
Multiply/Divide
1. Same signs: Positive answer
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2. Different signs: Negative answer
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Add/Subtract
1. Same signs: Add numbers, keep sign
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2. Different signs: Subtract numbers, keep sign of larger
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
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2. WHAT kind of answer should you ALWAYS have for a evaluate problem?
3. WHAT are true or false statements?
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
•
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2. WHAT kind of answer should you ALWAYS have for a evaluate problem?
A number
3. WHAT are true or false statements?
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
•
•
2. WHAT kind of answer should you ALWAYS have for a evaluate problem?
A number
3. WHAT are true or false statements?
A true statement is an equation that is the same thing on both sides.
(Like 4 + 1 = 5)
With a false statement, the sides are different.
(Like 4 + 1 = 6)
Algebra wants to know.
Do you know?
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
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REAL LIFE
Much of Imperial Valley, California, is below sea level. Here are the elevations
for five locations there – put them in order from highest to lowest.
Alamorio
- 135 feet
Curlew
- 93 feet
Gieselmann Lake – 162 feet
Moss
- 100 feet
Orita
- 92 feet
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
•
REAL LIFE
Much of Imperial Valley, California, is below sea level. Here are the elevations
for five locations there – put them in order from highest to lowest.
Alamorio
- 135 feet
Curlew
- 93 feet
Gieselmann Lake – 162 feet
Moss
- 100 feet
Orita
- 92 feet
Orita
Curlew
Moss
Alamorio
Gieselmann Lake
The Salton Sea
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
•
REAL LIFE
Much of Imperial Valley, California, is below sea level. Here are the elevations
for five locations there – put them in order from highest to lowest.
Alamorio
- 135 feet
Curlew
- 93 feet
Gieselmann Lake – 162 feet
Moss
- 100 feet
Orita
- 92 feet
Orita
Curlew
Moss
Alamorio
Gieselmann Lake
If the Salton Sea is at – 266 feet, where in the rankings does it fall?
Week #1A Section #1 Notes
Integers and True/False Statements
The Questions
•
REAL LIFE
Much of Imperial Valley, California, is below sea level. Here are the elevations
for five locations there – put them in order from highest to lowest.
Alamorio
- 135 feet
Curlew
- 93 feet
Gieselmann Lake – 162 feet
Moss
- 100 feet
Orita
- 92 feet
Orita
Curlew
Moss
Alamorio
Gieselmann Lake
If the Salton Sea is at – 266 feet, where in the rankings does it fall?
At the bottom.
Ending Quiz
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1. - 14 plus -2 is:
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A. 16
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2. - 14 divided by -2 is:
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A. 7
B. -28
B. -28
C. -16
D. -12
C. 28
D. -7