2.
Bell Ringer
• A positive + a positive is (always, sometimes, never)
a positive.
• A positive + a positive is (always, sometimes, never)
a negative.
• A negative + a negative is
(always, sometimes, never) negative.
• A positive + a negative is
(always, sometimes, never) a positive.
3.
Bell Ringer
• A positive + a positive is (always, sometimes, never)
a positive.
o POSITIVE
• A positive + a positive is (always, sometimes, never)
a negative.
o NEVER
• A negative + a negative is (always, sometimes,
never) negative.
o ALWAYS
• A positive + a negative is (always, sometimes,
never) a positive.
o SOMETIMES
4.
Where we were…
• Adding integers
o Same signs…
o Opposite signs…
• Subtracting Integers
o Additive inverse
• Absolute value
5.
Where we are…
• Students will learn to…
o Review the rules for adding integers.
7.
Unit Plan
• I can… represent addition and subtraction on a
horizontal number or vertical number line.
o Rate yourself and date
• I can… solve real-world and mathematical
problems involving the four operations with rational
numbers.
o Rate yourself and date
8.
Where we are going…
• Quiz on Friday
o Adding integers
o Subtracting integers
9.
Adding Integers
• Power Write #1
o Describe the rules for adding integers with the same signs…
• Power Write #2
o Describe the rules for adding integers with opposite signs…
10.
Adding Integers
• Power Write #1
o Describe the rules for adding integers with the same signs…
• Add the numbers, keep the common sign
• Power Write #2
o Describe the rules for adding integers with opposite signs…
• Subtract the numbers, keep the sign of the number with the larges
absolute value.
29.
Word Problem
• A football team gained 7 yards on the first play, lost
9 yards on the second play and gained 6 yards on
the third play. To get a first down, they must gain 10
yards on 4 plays.
• Write an addition expression that shows this
scenario.
• How many yards will the team need to gain on it’s
fourth play to get a first down?
30.
Word Problem
• A football team gained 7 yards on the first play, lost
9 yards on the second play and gained 6 yards on
the third play. To get a first down, they must gain 10
yards on 4 plays.
• Write an addition expression that shows this
scenario.
o 7 + (-9) + 6
• How many yards will the team need to gain on it’s
fourth play to get a first down?
o They have gained 4 yards, so they need 6 more yards for a first down.
31.
Homework
• Adding integers review worksheet
• Due tomorrow.
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